Masthead graphic identifying this page as being associated with the Merced WSR Revised Comprehensive Management Plan/SEIS

Appendix D: Special-Status Species

Table D-1
Rare, Threatened, and Endangered Species Considered in this Analysis

Areaa

Statusb

Species

USFWS

State

Park

Habitat Type/Occurrence

FEDERALLY LISTED THREATENED OR ENDANGERED SPECIES

Invertebrates

Valley elderberry longhorn beetle
Desmocerus californicus dimorphus

MG

FT

Found in deciduous riparian habitat with elderberry species (Sambucus spp.) below 2,000 feet. Elderberry occur at scattered locations within the lower planning corridor. Suitable habitat for this species occurs within the planning corridor. Valley elderberry longhorn beetles are reported from El Portal within the planning corridor.

Fish

Delta smelt
Hypomesus transpacificus

OC

FT

CT

Not native to planning corridor. This species does not occur within the planning corridor.

Lahontan cutthroat trout
Oncorhynchus clarki henshawi

OC

FT

Historically occurred in all accessible cold waters of the Lahonton Basin in a wide variety of water temperatures and conditions. Cannot tolerate the presence of other salmonids. Requires gravel riffles in streams for spawning. Recorded within the west fork of Portuguese Creek - outside the Merced River watershed (CDFG 2004a). This species cannot be considered present within the Merced River watershed except as artificially introduced.

Central Valley steelhead trout
Oncorhynchus mykiss

OC

FT

Not native to planning corridor. This species does not occur within the planning corridor.

Paiute cutthroat trout
Oncorhynchus clarki seleniris

OC

FT

Native to the east slope of the Sierra Nevada (NPS 1997w). Not native to Merced River watershed. This species cannot be considered present within the Merced River watershed.

Reptiles and Amphibians

California red-legged frog
Rana aurora draytonii

YV, MG

FT

CSC

Found in quiet pools in permanent streams in mixed conifer zones and foothills. Prefers riparian deciduous habitat. Suitable habitat for this species occurs within the planning corridor.

Birds

Bald eagle
Haliaeetus leucocephalus

YV, MG

FT

CE

Forages over rivers, streams, and lakes. Primarily eats fish, also carrion, waterbirds, and small mammals. Transient through Yosemite Valley and El Portal. No nesting in the park (NPS 1997w). The species was proposed for delisting 7/6/99. Suitable habitat for this species occurs within the planning corridor.

Mammals

Sierra Nevada bighorn sheep
Ovis canadensis sierrae

OC

FE

CE

Occurs primarily along the Sierra Crest in the northeast portion of the park. Most of the herd inhabits Forest Service land adjacent to the park. This species does not occur within the planning corridor.

FEDERAL SPECIES OF CONCERN

Invertebrates

Wawona riffle beetle
Atractelmis wawona

YV, MG, SF

FC

This aquatic species is a listed species due to its limited distribution in the North and South Forks of the Merced River. Historic occurrences of this species are located within the planning corridor. Suitable habitat for this species occurs within the planning corridor.

Merced Canyon shoulderband snail
Helminthoglypta allynsmithi

MG

FC

Found in rockslide habitat with shade and moisture. This species is associated with rocky areas that are resistant to effects reasonably associated with this plan.

Keeled sideband snail
Monadenia circumcarinata

YV, MG, SF

FC

Presence in project area unknown (NPS 1997w). This species is associated with rocky areas that are resistant to effects reasonably associated with this plan.

Yosemite Mariposa sideband snail
Monadenia hillebrandi yosemitensis

YV, MG, SF

FC

Rockslides may be necessary for shelter. This species is associated with rocky areas that are resistant to effects reasonably associated with this plan.

Sierra pygmy grasshopper
Tetrix sierrana

MG

FC

One record for El Portal (1953). Occurs in upland and riparian habitats. Suitable habitat for this species occurs within the planning corridor.

Bohart's blue butterfly
Philotiella speciosa bohartorum

MG, SF

FC

An annual in the buckwheat family, Chorizanthe membrancea, is the suspected host. It is found in association with serpentine soils. Suitable habitat for this species occurs within the planning corridor.

Fish

Longfin smelt
Spirinchus thaleichthys

OC

FC

CSC

Not native to planning corridor. This species does not occur within the planning corridor.

Red hills roach
Lavinia symmetricus

OC

FC

CSC

Not native to planning corridor. This species does not occur within the planning corridor.

Sacramento splittail
Pogonichthys mecrolepidotus

OC

FC

CSC

Not native to planning corridor. This species does not occur within the planning corridor.

Reptiles and Amphibians

Limestone salamander
Hydromantes brunus

MG

FC

CT

Very limited distribution along Merced River and its tributaries between elevations of 800 and 2,500 feet, usually in association with limestone outcrops. This species has limited distribution along the Merced River, and its habitat - limestone outcrops - and is not vulnerable to effects reasonably associated with this plan.

Mount Lyell salamander
Hydromantes platycephalus

UM, YV,

FC

CSC

Occurs in massive rock areas between 4,000 and 11,500 feet in elevation, in rock fissures, seeps, shade, and low-growing plants. Suitable habitat for this species occurs within the planning corridor.

Yosemite toad
Bufo canorus

UM

FCL

CSC

Restricted to areas of wet meadows in central high Sierra Nevada, between 6,400 and 11,300 feet. Suitable habitat for this species occurs within the planning corridor.

Foothill yellow-legged frog
Rana boylei

YV, MG, SF

FC

CSC

Formerly abundant, and found up to 6,000 feet in elevation, this species has virtually disappeared from its range in the Sierra Nevada from unknown causes. Preferred habitat was rocky streams and wet meadows. Suitable habitat for this species occurs within the planning corridor.

Mountain yellow-legged frog
Rana muscosa

UM

FCL

CSC

A species of mountain habitats, occurring at elevations from 6,000 to over 12,000 feet, found in streams, lakes, and ponds in a variety of vegetation types. Recent surveys in Yosemite have found that this species is much-reduced in distribution and numbers, probably due primarily to the introduction of non-native fish into its habitats. Suitable habitat for this species occurs within the planning corridor.

Northwestern pond turtle
Clemmys marmorata marmorata

YV, MG

FC

CSC

Found in the Sierra Nevada up to 6,000 feet in elevation, this species has decreased by up to 80% in numbers, probably due to habitat fragmentation and non-native predators. Habitat is permanent water in a variety of habitat types. Suitable habitat for this species occurs within the planning corridor.

Southwestern pond turtle
Clemmys marmorata pallida

YV, MG

FC

CSC

Found in the Sierra Nevada up to 6,000 feet in elevation, this species has decreased by up to 80% in numbers, probably due to habitat fragmentation and non-native predators. Habitat is permanent water in a variety of habitat types. Suitable habitat for this species occurs within the planning corridor.

Northern sagebrush lizard
Sceloporus graciosus graciosus

UM

FC

Inhabits mountain slopes, forested slopes, and open areas. Occurs in sandy areas near water. Suitable habitat for this species occurs within the planning corridor.

Birds

Harlequin duck
Histrionicus histrionicus

YV, MG, SF

FC

CSC

Breeds along large, swift-moving mountain rivers. Was formerly found in every major watershed in the Sierra, but has disappeared. Formerly nested in Yosemite Valley (NPS 1997w). This species was observed breeding in Yosemite Valley in 2002, and observed within Yosemite Valley without evidence of breeding in 2003 and 2004 (NPS 2004m).

Northern goshawk
Accipiter gentilis

UM, YV, SF

FC

CSC

Favors moderately dense coniferous forests broken by meadows, and other openings, between 5,000 and 9,000 feet in elevation. Typically nests in mature conifer stands near streams. Habitat destruction in its range has caused declines in population. Records exist for Yosemite Valley, primarily between November and February. Suitable habitat for this species occurs within the planning corridor.

American Peregrine falcon
Falco peregrinus anatum

YV, MG

FD

CE

Usually nest on high cliffs near water to search for prey. The species was formally delisted 8/25/99. Suitable habitat for this species occurs within the planning corridor.

Long-billed curlew
Numenius americanus

OC

FC

Breeds in wet meadow habitat in northeastern California. Preferred winter habitats include large coastal estuaries, upland herbaceous areas, and croplands. Suitable habitat for this species does not occur within the planning corridor.

Burrowing owl
Athene cunicularia

OC

FC

CSC

Found in open, dry annual or perennial grasslands, deserts and scrublands characterized by low-growing vegetation; subterranean nester in small mammal burrows. Suitable habitat for this species does not occur within the planning corridor.

Flammulated owl
Otus flammeolus

YV, MG, SF

FC

Various coniferous habitats from ponderosa pine to red fir forests. Breeds in the North Coast and Klamath Ranges, Sierra Nevada, and in suitable habitats in mountains in southern California. Suitable habitat for this species occurs within the planning corridor.

California spotted owl
Strix occidentalis occidentalis

YV, MG, SF

FC

CSC

Breeds from oak and ponderosa pine forests upslope to lower-elevation red fir forests up to 7,600 feet, with mixed conifer the optimum type. Presence of black oak in the forest canopy also enhances habitat suitability. Suitable habitat for this species occurs within the planning corridor.

Vaux's swift
Chaetura vauxi

YV

FC

CSC

Inhabits redwood and Douglas-fir habitats. Utilizes large hollow trees and snags, especially tall, burned-out stubs for nest sites. This species is mostly transient through the planning corridor. Breeding occurs in Yosemite Valley, usually in forested habitat near meadows (NPS 2004m).

Black swift
Cypseloides niger

YV

FC

CSC

Occurs in mountainous regions of the western United States and Canada. Currently, black swifts occur in three widely separated areas: central Colorado through central Utah; central and southwestern coastal California; and southern Alaska to northern Washington and inland to southwestern Alberta, northern Idaho, and northwestern Montana. This species has been observed within Yosemite Valley, specifically at Vernal Fall in 1990 (NPS 2004m).

Rufous hummingbird
Selasphorus rufus

YV

FC

Found in a wide variety of habitats that provide nectar-producing flowers. Uses valley foothill hardwood, valley foothill hardwood-conifer, riparian, and various chaparral habitats in both northward and southward migration; montane riparian, aspen, and high mountain meadows (to treeline and above) used in southward migration. Suitable habitat for this species occurs within the planning corridor.

Lewis' woodpecker
Melanerpes lewis

OC

FC

Occurs in open oak savannahs, broken deciduous, and coniferous habitats. Breeds locally along eastern slopes of the Coast Ranges, and in the Sierra Nevada, Warner Mountains, Klamath Range, and the Cascade Range. Suitable habitat for this species does not occur in the planning corridor.

White-headed woodpecker
Picoides albolarvatus

YV

FC

Occurs in montane coniferous forests up to lodgepole pine and red fir habitats in the Sierra Nevada, Cascade, Klamath, Transverse, and Peninsular Ranges, and Warner Mountains. Suitable habitat for this species occurs in the planning corridor.

Nuttall's woodpecker
Picoides nuttallii

YV, MG

FLC

Occurs in the Central Valley, Coast Ranges, and in lower portions of the Cascade Range and Sierra Nevada. Forages mostly in oak and riparian deciduous habitats. This species occurs commonly in El Portal and less commonly in Yosemite Valley (NPS 2004m).

Loggerhead shrike
Lanius ludovicianus

OC

FC

CSC

Nests in shrublands and forages in open grasslands. Suitable habitat for this species does not occur in the planning corridor.

Oak titmouse
Baeolophus inornatus

MG

FLC

Live oaks and deciduous woodlands. Suitable habitat for this species occurs within the planning corridor.

American dipper
Cinclus mexicanus

YV

FLC

Permanent resident throughout most of western United States, along mountain streams.This species often nests under bridges in Yosemite Valley (NPS 2004m).

California thrasher
Toxostoma redivivum

OC

FC

Occupies moderate to dense chaparral habitats and, less commonly, extensive thickets in young or open valley foothill riparian habitat in foothill and lowland areas. Suitable habitat for this species does not occur within the planning corridor.

Tricolored Blackbird
Agelais tricolor

OC

FC

CSC

Colonial nesting species in emergent wetlands. This species has not been reported from the planning corridor.

Bell's sage sparrow
Amphispiza belli belli

OC

FC

CSC

This species has not been reported from the planning corridor.

Lawrence's goldfinch
Carduelis lawrencei

OC

FC

Breeds in oak or other open woodlands near water. This species has not been reported from the planning corridor.

Mammals

Mount Lyell shrew
Sorex lyelli

UM

FC

CSC

Favors riparian zones and other wet sites (USFS 1980). Known only from the vicinity of Mount Lyell (outside the planning corridor) within the park. Suitable habitat for this species occurs within the planning corridor.

Spotted bat
Euderma maculatum

YV, MG, SF, UM

FC

CSC

Rare throughout range. Uses crevices in rock faces for roosting and reproduction. Forages in a wide variety of habitats, primarily for moths. Suitable habitat for this species occurs within the planning corridor.

Small-footed myotis bat
Myotis ciliolabrum

MG, UM,
YV, SF

FC

Usually found above 6,000 feet and in wooded and brushy habitats near water. Forages among trees and over water. Breeds in colonies in buildings, caves, and mines (NPS 1997w). Suitable habitat for this species occurs within the planning corridor.

Long-eared myotis bat
Myotis evotis

YV, MG,
UM, SF

FC

Wide range from coast to high Sierra Nevada; montane oak woodlands. Roosts primarily in hollow trees, especially large snags or lightning-scarred live trees. Suitable habitat for this species occurs within the planning corridor.

Fringed myotis bat
Myotis thysanodes

YV, MG, SF, UM

FC

Found to at least 6,400 feet in the Sierra Nevada, in deciduous/mixed conifer forests. Feeds over water, in open habitats, and by gleaning from foliage. Roosts in caves, mines, buildings, and trees, especially large conifer snags. Suitable habitat for this species occurs within the planning corridor.

Long-legged myotis bat
Myotis volans

YV, MG, UM, SF

FC

Found up to high elevations in the Sierra Nevada, in montane coniferous forest habitats. Forages over water, close to trees and cliffs, and in openings in forests. Roosts primarily in large-diameter snags. Forms nursery colonies numbering hundreds of individuals, usually under bark or in hollow trees. Suitable habitat for this species occurs within the planning corridor.

Yuma myotis bat
Myotis yumanensis

YV, MG,
SF, UM

FC

CSC

Usually occurs below elevations of 8,000 feet. Forages over open, still, or slow-moving water and above low vegetation in meadows. Roosts in buildings, caves, or crevices. Nursery colonies of several thousand individuals may be in buildings, caves, or mines. Suitable habitat for this species occurs within the planning corridor.

Greater western mastiff bat
Eumops perotis californicus

YV, MG,
SF, UM

FC

CSC

Found in a variety of habitats to elevations over 8,000 feet. Roosts primarily in crevices in cliff faces, and occasionally trees. Detected most often over meadows and other open areas, but will also feed above forest canopy; sometimes to high altitudes (1,000 feet). Suitable habitat for this species occurs within the planning corridor.

Pygmy rabbit
Brachylagus idahoensis

OC

FC

CSC

This species has not been reported from the planning corridor.

Sierra Nevada snowshoe hare
Lepus americanus tahoensis

OC

FC

CSC

This species has not been reported from the planning corridor.

Mono Basin mountain beaver
Aplodontia rufa californica

SF, UM

FC

CSC

Prefers willow-lined perennial streams through montane meadows, where it establishes a system of burrows, often with the stream running through them. Suitable habitat for this species occurs within the planning corridor.

Marten
Martes americanus

UM, SF, YV

FC

Found in dense, complex coniferous forests with large trees and snags. Structural complexity near the ground is important for foraging and protection from predators. Suitable habitat for this species occurs within the planning corridor.

Fisher
Martes pennanti

UM, SF

FCL

CSC

Occurs in coniferous forests and deciduous-riparian habitats with a high percentage of canopy closure, mostly above elevations of approximately 6,000 feet. Carnivorous, but may also eat fruit and fungi. Densities of fisher in the central Sierra Nevada appear to be very low, for unknown reasons. Higher densities exist in both the northern and southern Sierra Nevada. Suitable habitat for this species occurs within the planning corridor.

Vegetation

Three-bracted onion
Allium tribracteatum

MG, SF

FC

PS

Found in chaparral and Sierran coniferous forest on volcanic slopes and ridges between 3,400 and 9,750 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Big-scale balsamroot
Balsamorhiza macrolepis
var macrolepis

MG

FLC

PW

Valley and foothill grassland and woodland communities. Often associated with serpentine soils. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Mono hot springs evening primrose
Camissonia sierrae
ssp. alticola

UM

FC

PS

Known from few occurrences in Fresno and Mariposa Counties. In sand or gravel over granite in mixed conifer forests. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Small's southern clarkia
Clarkia australis

UM

FC

PS

Confined to open ponderosa pine forests. Recorded at Tioga Road and at the Toll House (CDFG 2004a). No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Mariposa clarkia
Clarkia biloba
ssp. australis

MG, SF

FC

PS

Chaparral and cismontane woodlands. Endemic to Mariposa and Tuolumne Counties outside the park. Recorded along the South Fork Merced River, Mouth of Ned's Gulch, Sweetwater Creek, and along Highway 140 (CDFG 2004a). No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Merced clarkia
Clarkia lingulata

MG, SF

FC

CE

PS

Endemic to Mariposa County west of Yosemite National Park and the El Portal Administrative Site. Associated with metamorphic gravels and talus in red clay on north-facing slopes and canyon bottoms within chaparral, coniferous forest, and cismontane woodland communities. Recorded along Highway 140 near the South Fork Merced River outside the planning corridor (CDFG 2004a). Suitable habitat for this species occurs within the planning corridor.

Congdon's woolly sunflower
Eriophyllum congdonii

MG, SF

FC

R

PS

Restricted to dry, mostly south-facing metamorphic and metasedimentary outcrops. Occurs on dry ridges on metamorphic rocks, scree, and talus. One plant has been located at the Sand Pit in El Portal. Known population of this species occurs within the planning corridor (NPS 2004k, USGS 2004b).

Yosemite woolly sunflower
Eriophyllum nubigenum

UM

FC

PS

South-facing granitic slabs, domes, and gravels. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Short-leaved hulsea
Hulsea brevifolia

UM

FLC

PS

Inhabits granitic or volcanic montane coniferous forests between 4,950 and 10,560 feet in elevation with gravelly or sandy soils. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Red-rayed hulsea
Hulsea
heterochroma

UM

FLC

PS

Known from sandy open coniferous forests and recent burns. Known population of this species occurs within the planning corridor (NPS 2004k, NPS 1985c).

Yosemite lewisia
Lewisia disepala

UM, YV, MG

FC

PS

Occurs on fine gravel on rock outcrops, domes, or ridges. Known population of this species occurs within the planning corridor (NPS 2004k, NPS 1985c).

Congdon's lomatium
Lomatium congdonii

MG

FC

PS

Restricted to serpentine and metamorphic soils in canyon live oak woodlands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Slender-stemmed monkeyflower
Mimulus filicaulis

MG

FC

PS

Located in moist granitic soils and meadow edges - vernally mesic sites. Recorded near Snow Creek, Merced Grove, Moss Creek, Bull Creek, and Big-Grizzly Mountain (CDFG 2004a). No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Pansy monkeyflower
Mimulus pulchellus

YV

FLC

PS

Found in vernally moist, open gravelly places such as vernal pools. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Yosemite popcorn-flower
Plagiobothrys torreyi
var. torreyi

YV

FLC

PS

Located in moist granitic soils and meadow edges/disturbed sites often in partial shade between about 3,900 to 5,700 feet. Known historic occurrences of this species are located between Happy Isles and Mirror Lake, and at Sentinel Bridge and Bridalveil Meadow (CDFG 2004a). Known population of this species occurs within the planning corridor (USGS 2004b)

[No common name]
Schizymenium shevockii

MG, SF

FLC

Found in cismontane woodland in areas with metamorphic rock, on rock ledges and overhangs. Known populations of this species occur within the planning corridor at Cold Creek near the Redbud Picnic Area (Shevock 2004).

Bolander's clover
Trifolium bolanderi

YV

FC

PS

Confined to wet montane meadows. This species occurs along Glacier Point Road (outside the planning corridor). No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

STATE LISTED RARE, THREATENED, OR ENDANGERED SPECIES AND SPECIES OF SPECIAL CONCERN

Birds

Cooper's hawk
Accipiter cooperi

YV, UM,
MG, SF

CSC

A hawk of wooded areas, found up to 9,000 feet in the Sierra Nevada. Numerous recent records for Yosemite, especially in Yosemite Valley. Habitat destruction in its range has led to population declines. Frequently hunts along wooded edges (NPS 1997w). This species is relatively tolerant of high levels of disturbance.

Sharp-shinned hawk
Accipiter striatus

YV, UM,
MG, SF

CSC

Hunts in open coniferous forest and edges of meadows and clearings between elevations of 4,000 and 7,000 feet in the Sierra Nevada. Nests in forests. One old (1930) nesting record for Yosemite Valley (NPS 1997w). This species is relatively tolerant of high levels of disturbance.

Merlin
Falco columbarius

OC

CSC

Occurs mostly below elevations of 4,000 feet, ranging from annual grasslands to ponderosa pine and California black oak woodland, but prefers open country. Feeds primarily on birds. Reduction in numbers over recent decades may be due to pesticides. This species has not been reported from the planning corridor.

Prairie falcon
Falco mexicanus

UM, YV

CSC

Primarily associated with open areas such as grasslands and meadows, where it feeds on small mammals and birds. Nests on cliffs. Numbers have declined in California due to several probable factors, including nest robbing by humans, control of prey species, and pesticides. Many records of this species in alpine areas of Yosemite National Park and occasionally seen in Yosemite Valley. Suitable habitat for this species occurs within the planning corridor.

Long-eared owl
Asio otus

YV, MG, SF

CSC

Requires riparian or other thickets with small, densely canopied trees for roosting and nesting. Proximity of this habitat to meadow edges for hunting also enhances quality. One nesting record in Yosemite Valley in 1915 (NPS 1997w). Suitable habitat for this species occurs within the planning corridor.

Great gray owl
Strix nebulosa

UM, YV, SF

CE

Entire California population of this species is restricted to the Yosemite region, where it reaches southernmost extent of its North American range. Breeds in mixed conifer/red fir forests bordering meadows. Winters in mixed conifer down to blue oak woodlands. Research suggests that human disturbance could affect foraging success of this species, which may explain its absence from Yosemite Valley, and raises concern about actions that may increase human disturbance on great gray owl habitat. Suitable habitat for this species occurs within the planning corridor.

Little willow flycatcher
Empidonax traillii brewsteri

YV, SF

CE

Breeds in mountain meadows and riparian areas from elevations of 2,000 to 8,000 feet in the Sierra Nevada, with lush growth of shrubby willows. Has disappeared from much of its range, due to habitat destruction and parasitism from brown-headed cowbirds. Suitable habitat for this species occurs within the planning corridor.

Yellow warbler
Dendroica petechia

YV, MG, SF

CSC

Prefers riparian woodlands, but also breeds in chaparral, ponderosa pine, and mixed conifer habitats with substantial amounts of brush. In recent decades, numbers of breeding pairs have declined dramatically in many lowland areas of California. A major cause of this decline has apparently been brown-headed cowbird parasitism (NPS 1997w). Suitable habitat for this species occurs within the planning corridor.

Mammals

Pallid bat
Antrozous pallidus

YV, SF,

MG

CSC

Primarily found below 6,000 feet in elevation, in a variety of habitats, especially oak, ponderosa pine, and giant sequoia habitats. Roosts in rock outcrops, caves, and especially hollow trees. Suitable habitat for this species occurs within the planning corridor.

Pale big-eared bat
Corynorhinus townsendii pallescens

YV

CSC

Found in all habitats up to alpine zone. Requires caves, mines, or buildings for roosting. Prefers mesic habitats where it gleans from brush or trees along habitat edges. Recorded at Wildcat Creek bridge and Mirror Lake (CDFG 2004a). Suitable habitat for this species occurs within the planning corridor.

Townsend's big-eared bat
Corynorhinus townsendii townsendii

YV, MG,
SF, UM

CSC

Found in all habitats up to alpine zone. Requires caves, mines, or buildings for roosting. Prefers mesic habitats where it gleans from brush or trees along habitat edges. Suitable habitat for this species occurs within the planning corridor.

Sierra Nevada red fox
Vulpes vulpes necator

UM

CT

Primarily found in red fir, lodgepole pine, subalpine forests, and alpine fell-fields. Found mostly above 7,000 feet and rarely below elevations of 5,000 feet. Five unconfirmed reports for Yosemite Valley, but these sightings could have been of eastern red fox, a non-native species that is present on the west slope of the Sierra Nevada. Suitable habitat for this species occurs within the planning corridor.

California wolverine
Gulo gulo luteus

UM

CT

Found in a wide variety of mountain habitats. Needs water, caves, logs, or other cover for denning. No wolverine occurrences have been recorded within California since the 1970s (CDFG 2004a). This species is presumed extirpated from California.

Vegetation

Yosemite onion
Allium yosemitense

SF

R

PS

Confined to open metamorphic slabs, talus slopes, and scree. Known population of this species occurs within the planning corridor (NPS 1985c, USGS 2004b).

Tompkin's sedge
Carex tompkinsii

MG

R

PS

Limited to foothill oak woodland and chaparral areas and along lower talus slopes. Found sporadically from Arch Rock to El Portal in the Merced River gorge. Known populations of this species occur within the planning corridor (USGS 2004).

Congdon's lewisia
Lewisia congdonii

MG

R

PS

Grows on moist exposed metamorphic rock faces and slopes. Occurs in chaparral and mixed conifer forest on north-facing slopes in shade. Known population of this species occurs within the planning corridor (NPS 1985c, USGS 2004b).

PARK SENSITIVE SPECIES

Vegetation

Mountain bent grass
Agrostis humilis

UM

PS

Grows in subalpine coniferous forest, alpine boulder and rock field, and meadows and seeps from 8,800 to 10,500 feet in elevation. An historic occurrence of this species was recorded west of Tenaya Lake (CDFG 2004a). No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sugar stick
Allotropa virgata

YV

PS

Confined to black oak and mixed conifer forest areas. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Broad-podded phoenicaulis
Anelsonia eurycarpa

UM

PS

Found on broken rock, talus, slopes, ridges. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Pasque flower
Anemone
occidentalis

UM

PS

Occurs on open, rocky slopes and montane coniferous forest between 3,900 and 10,200 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Slender silver-moss
Anomobryum julaceum

YV

PS

Found in exposed seasonally wet soils, such as along south facing walls. Historic occurrence of this species is located near Yosemite Falls (CDFG 2004a). No recent reported occurrences, but suitable habitat for this species occurs within the planning corridor (Shevock 2004).

Snapdragon
Antirrhinum leptaleum

SF

PS

Restricted to small washes and shallow ditches in disturbed areas. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Weeping-fruited Holboell's rock cress
Arabis holboellii
var. pendulocarpa

UM

PS

Occurs on rocky slopes in yellow pine forest to subalpine forest between 5,000 and 10,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Inyo rock cress
Arabis inyoensis

UM

PS

Found on rocky ridges and slopes in pinyon-juniper woodland to subalpine forest between 5,000 and 11,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Lyall's rock cress
Arabis lyallii
var. lyallii

UM

PS

Found on rock crevices, talus, meadows, alpine fell fields between 7,800 and 12,200 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Greene's rock cress
Arabis repanda
var. greenei

UM

PS

Occurs between approximately 8,860 and 11,810 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Repand rock cress
Arabis repanda
var. repanda

UM, YV, MG, SF

PS

Found on gravel, rocks, talus, dry slopes, often under pines, in yellow pine forest, red fir forest, lodgepole forest between 4,600 and 9,200 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Lemmon's wild ginger
Asarum lemmonii

UM, YV, MG, SF

PS

Occurs in shady wet sites in yellow pine and red fir forest between 3,600 and 6,200 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Alpine spiny rattleweed
Astragalus kentrophyta
var. danus

MG, SF

PS

Grows on alpine summits with metamorphic bedrock. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sierra bolandra
Bolandra californica

YV

PS

Found in lower and upper montane coniferous, rocky and mesic habitats. Known population of this species occurs within the planning corridor (NPS 1985c).

Hair-leaf sedge
Bulbostylis capillaris

YV, MG, SF

PS

Occurs in yellow pine forest, in meadows and seeps and meadow habitats between 4,000 and 6,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Yosemite evening-primrose
Camissonia sierrae
ssp. sierrae

YV

PS

Located on granite outcrops in ponderosa pine or foothill pine/blue oak forests. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sedge
Carex albonigra

MG

PS

Locally rare in the Sierra Nevada in alpine marshy areas and springs. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Buxbaum's sedge
Carex buxbaumii

UM

PS

Occurs in montane and subalpine fens; yellow pine, red fir, lodgepole, and subalpine forests, meadows, seeps. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sedge
Carex capitata

MG

PS

Restricted in the Sierra Nevada; strictly alpine. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Congdon's sedge
Carex congdonii

MG

PS

Talus slopes. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Cleft sedge
Carex fissuricola

UM

PS

Located in meadow slopes and flats, among rocks, in red fir and subalpine forests, between 5,000 and 11,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Cloud sedge
Carex haydeniana

UM

PS

Occurs in rocky slopes and flats in snow-melt areas, subalpine forest, alpine fell-fields between 7,800 and 13,800 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Dana's sedge
Carex incurviformis
var. danaensis

UM

PS

Occurs in alpine fell-fields in open, gravelly or rocky slopes. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Shore sedge
Carex limosa

UM, YV, MG, SF

PS

Found in bogs and fens in montane coniferous forest, meadows, and marshes. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Meadow sedge
Carex praticola

MG

PS

Found in meadows and open woods below 2,000 feet. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Single-spiked sedge
Carex scirpoidea
var. pseudoscirpoidea

UM, YV, MG, SF

PS

Occurs in rocky places that are at least seasonally wet. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Tahoe sedge
Carex tahoensis

UM

PS

Found in open dry rocky slopes in subalpine forest, alpine fell-fields between 9,500 and 12,200 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Whitney's sedge
Carex whitneyi

YV

PS

Found in sandy and gravelly meadows. Known population of this species occurs within the planning corridor (NPS 1985c).

Indian paintbrush
Castilleja foliolosa

MG

PS

Found on dry, open, rocky slopes on the edge of chaparral areas. No recorded occurrences, but suitable habitat for this species occurs within the planning corridor.

Fresno ceanothus
Ceanothus fresnensis

YV, MG. SF

Occurs in cismontane woodland and lower montane coniferous forest habitats. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Alpine cerastrum
Cerastrum beeringianum

MG

PS

Grows near snowbanks in alpine areas. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Bolander's woodreed
Cinna bolanderi

MG,SF

PS

Found in meadows and seeps, streamside and other mesic areas in subalpine coniferous forest between 5,511 and 8,052 feet in elevation. Recorded occurrences of this species are located near Mariposa Grove (CDFG 2004a) and Tamarack Flat (NPS 2004l). No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Fell-fields claytonia
Claytonia megahiza

UM

PS

Occurs on gravelly soils or crevices between rocks within alpine fell fields and subalpine coniferous forests. No recorded occurrences, but suitable habitat for this species occurs within the planning corridor.

Sierra spring beauty
Claytonia nevadensis

UM

PS

Occurs in alpine fell-fields. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Bride's bonnet
Clintonia uniflora

YV, MG, SF

PS

Found in yellow pine forest and red fir forest between 3,500 and 6,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Child's blue-eyed Mary
Collinsia childii

MG, SF

PS

Endemic to central and southern Sierra Nevada, reaching the northern extent of its range in Mariposa County. Occurs on shaded slopes and in open oak and mixed coniferous woodlands. Known population of this species occurs within the planning corridor (NPS 2004l, NPS 1985c).

Collinsia
Collinsia linearis

MG, SF

PS

Restricted to dry, metamorphic rock outcrops along the metamorphic-granitic contact zone. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Short-bracted bird's-beak
Cordylanthus rigidus
ssp. brevibracteatus

YV, MG, SF

PS

Found between approximately 3,280 and 8,200 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Truckee cryptantha
Cryptantha glomeriflora

UM

PS

Occurs in yellow pine, red fir, lodgepole, and subalpine forests, meadows, seeps, slope habitats. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Mountain lady's slipper
Cypripedium montanum

YV, MG

PS

Found in broad-leaved upland forest, lower montane conferous forest. Known occurrence of this species occurs within the planning corridor (NPS 1985c, USGS 2004b).

Red larkspur
Delphinium nudicaule

MG, SF

PS

Found in chaparral, foothill woodland, mixed evergreen forest, and yellow pine forest in dry conditions in slope habitats up to 6,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Few-flowered bleeding heart
Dicentra pauciflora

UM

PS

Located in gravelly sites in subalpine forest and alpine fell-fields between 4,000 and 10,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Subalpine draba
Draba praealta

UM

PS

Occurs in montane or subalpine moist meadows, streambanks, above 10,000 feet. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sundew
Drosera rotundifolia

UM

PS

Confined to sphagnum bogs. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Broad-leaved willow herb
Epilobium latifolium

UM

PS

Found in lodgepole pine forest and subalpine forest in wet stony places. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Stream orchid
Epipactis gigantea

YV

PS

Restricted to moist granitic ledges, and planted in landscaped areas. Known populations of this species occur within the planning corridor (NPS 2004l, NPS 1985c, USGS 2004b).

Shining fleabane
Erigeron barbellulatus

UM

PS

Occurs on gravelly or rocky slopes in red fir forest to subalpine forest. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Rayless fleabane
Erigeron inornatus
var. inornatus

MG, SF

PS

Located in forest openings, dry rocky places, in foothill woodland, mixed evergreen forest, yellow pine forest, and red fir forest. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Wild daisy
Erigeron linearis

MG

PS

Known from the metamorphic contact zone. No reported occurrences, but suitable habitat for this species may occur within the planning corridor.

Wild daisy
Erigeron vagus

OC

PS

Rare on crest and eastern slopes of the Sierra Nevada. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Buckwheat
Eriogonum prattenianum

OC

PS

Found on rock outcrops within river corridors. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Naked wild buckwheat
Eriogonum nudum
var. scapigerum

OC

PS

Found on alpine slopes. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Slender cotton-grass
Eriophorum gracile

YV, MG, SF

PS

Found in yellow pine forest, red fir forest, and mixed evergreen forest in meadows and bogs. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Fawn-lily
Erythronium purpurascens

YV

PS

Endemic to the Sierra Nevada, growing along shaded stream and river corridors. Known population of this species occurs within the planning corridor (NPS 2004l, NPS 1985c).

Small-flowered fescue
Festuca minutiflora

UM, YV, MG, SF

PS

Occurs on moist, shady banks. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Pine-woods fritillary
Fritillaria pinetorum

UM

PS

Found in yellow pine, red fir, lodgepole, and subalpine forest, on granitic substrate in slope habitats between 6,000 and 10,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Explorer's gentian
Gentiana calycosa

UM

PS

Occurs in red fir forest, lodgepole forest, and subalpine forest in moist conditions between 4,000 and 10,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Boreal bedstraw
Galium boreale
ssp. septentrionale

YV

PS

Found in wet lower montane meadows. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Dane's gentian
Gentianella tenella

MG

PS

Occurs in high meadows. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

California sunflower
Helianthus californicus

MG

PS

Found in foothill woodland, valley grassland, freshwater wetlands, meadows, and seeps, in wet conditions up to 6,000 feet in elevation. Known population of this species is located north of the planning corridor (NPS 1985c).

Goldenaster
Heterotheca sessiliflora
ssp. echioides

YV, MG

PS

Limited to grasslands and open oak woodlands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Hairy goldenaster
Heterotheca villosa
var. hispida

OC

PS

Found in rocky places in red fir forest and Joshua tree woodland. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Oceanspray
Holodiscus discolor

MG

PS

Found in lower to middle montane forests in rocky, dry areas. Known population of this species is located near the planning corridor (NPS 1985c).

Western quillwort
Isoetes occidentalis

OC

PS

Found in mountain lakes in red fir forest to subalpine forest. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Yosemite ivesia
Ivesia unguiculata

YV

PS

Endemic to montane meadows and forest edges. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Common juniper
Juniperous communis
var. montana

MG

PS

Rocky or wooded slopes in high elevation forests. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Pitcher sage
Lepechinia calycina

MG

PS

Found on rocky slopes within chaparral and canyon live oak woodlands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sierra laurel
Leucothoe davisiae

YV

PS

Grows in wet areas and bogs in acid soil. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

False pimpernel
Lindernia dubia
var. anagallidea

YV

PS

Lives in wet meadows. Known occurrence of this species occurs within the planning corridor (NPS 1985c).

Tanoak
Lithocarpus densiflorus

var. echinoides

YV, MG, SF

PS

Occurs in dry conditions in slope habitats between approximately 1,970 and 6,560 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Slender lupine
Lupinus gracilentus

UM

PS

Found in subalpine coniferous forest. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Inyo meadow lupine
Lupinus pratensis
var. pratensis

YV, MG, SF

PS

Occurs in meadows and stream banks between 3,300 and 11,550 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Northern bugleweed
Lycopus uniflorus

YV, MG, SF

PS

Found in moist areas, marshes, and near springs between 5,280 and 6,600 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Yosemite tarplant
Madia yosemitana

YV, MG,SF

PS

Occurs in lower montane coniferous forests, grassy slopes, and meadows between 3,960 and 7,590 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Elongate copper-moss
Mielichhoferia elongate

MG, SF

PS

Found in cismontane woodland in areas with metamorphic rock, on rock ledges and overhangs. Known populations of this species occur within the planning corridor at Cold Creek near the Redbud Picnic Area (Shevock 2004).

Bicolored monkeyflower
Mimulus bicolor

MG, SF

PS

Found in foothill woodland, yellow pine forest, and chaparral in moist conditions; usually occurs in nonwetlands, but occasionally found in wetlands up to 6,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Congdon's monkeyflower
Mimulus congdonii

MG

PS

Found in granitic soils in disturbed areas, seeps, runoff areas on slopes. Known population of this species occurs within the planning corridor (NPS 1985c).

Purple mouse-ears
Mimulus douglasii

MG, SF

PS

Occurs in chaparral and foothill woodland on gravelly serpentine soils under moist conditions, equally likely in wetlands or nonwetlands up to 4000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Inconspicuous monkeyflower
Mimulus inconspicuous

MG

PS

Found near hillside streams or seeps in partial shade. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Cut-leaved monkeyflower
Mimulus laciniatus

MG, SF

PS

Occurs in chaparral, lower and upper montane conifer forest, and mesic areas of granitic substrate. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Palmer's monkeyflower
Mimulus palmeri

MG

PS

Restricted to damp, shaded slopes under canyon live oaks. Known population of this species occurs near planning corridor (NPS 2004l). Suitable habitat for this species occurs within the planning corridor.

Alpine sandwort
Minuartia obtusiloba

UM

PS

Occurs in subalpine coniferous forest, dwarf scrub, alpine boulder and rock field on metamorphic rock. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Dwarf sandwort
Minuartia pusilla

MG

PS

Confined to open pine forests and chaparral slopes. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Bishop's cap
Mitella pentandra

YV

PS

Known from red fir forest, lodgepole forest in rocky soil, occurs almost always under natural conditions in wetlands. Known population of this species occurs within the planning corridor (NPS 1985c).

Sierra sweet-bay
Myrica hartwegii

SF

PS

Endemic to the northern and central Sierra Nevada. Restricted to streambanks, forming small thickets along the river. Known population of this species occurs within the planning corridor (NPS 2004l, NPS 1985c, USGS 2004b).

Bog asphodel
Narthecium californicum

MG, SF

PS

Found in yellow pine, red fir, and Douglas-fir forests, meadows, seeps and wet conditions almost always in wetlands up to 8,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Azure penstemon
Penstemon azureus
ssp. angustissimus

YV

PS

Generally found in moist woodlands and open forests. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Foothill penstemon
Penstemon heterophyllus

var. purdyi

MG, SF

PS

Located in chaparral, foothill woodland, and yellow pine forest in dry conditions on slope habitats; up to approximately 5,250 feet in elevation.

Phacelia
Phacelia platyloba

MG

PS

Found in gravelly or rocky soils in chaparral and canyon live oak woodland. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Phacelia
Phacelia tanacetifolia

YV

PS

Grows in moist sandy and gravelly open areas. Known population of this species occurs within the planning corridor (NPS 1985c).

Condensed phlox
Phlox condensata

OC

PS

Found on dry slopes and benches, especially on travertine or limestone, in pinyon-juniper woodland, yellow pine forest. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Coleman's piperia
Piperia colemanii

MG, SF

PS

Occurs in chaparral and lower montane coniferous forest. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Bog bluegrass
Poa leptocoma

ssp. leptocoma

UM

PS

Occurs on wet stream banks and boggy meadows in lodgepole forest and subalpine forest habitats. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Sierra podistera
Podistera
nevadensis

UM

PS

Occurs in alpine boulder and rock field habitats. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Great polemonium
Polemonium
occidentale

UM

PS

Found in yellow pine, red fir, lodgepole, and subalpine forests in wet conditions almost always in wetlands up to 11,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Showy polemonium
Polemonium
pulcherrimum

UM

PS

Found in subalpine forest and alpine fell-fields, on rocky soil and volcanic substrate under dry conditions in slope habitat between approximately 7,875 and 12,140 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Kruckeberg's sword fern
Polystichum
kruckebergii

UM

PS

Found in shaded rock crevices and rocky soils in subalpine forest and red fir forest. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Nuttall's pondweed
Potamogeton
epihydrus
ssp. nuttallii

UM, YV, MG, SF

PS

Occurs in freshwater marsh habitats. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Robbins' pondweed
Potamogeton
robbinsii

OC

PS

Found in lakes and other deep water emergent wetlands. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

Silver-weed cinquefoil
Potentilla
anserina
ssp. anserina

MG, SF

PS

Occurs in wet, often alkali areas, in montane coniferous forest between 3,960 and 8,250 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Nuttall's alkali grass
Puccinellia
nuttalliana

OC

PS

Occurs in alkaline places, in mixed evergreen forest, sagebrush scrub, yellow pine forest. No reported occurrences, and suitable habitat for this species does not occur within the planning corridor.

White beaked rush
Rhynchospora
alba

UM, YV, MG, SF

PS

Found in fens and bogs and freshwater wetlands almost always in wetlands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Snow willow
Salix reticulata

MG

PS

Restricted to the Sierra Nevada crest in Yosemite National Park and adjacent alpine slopes. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Weak saxifrage
Saxifraga debilis

UM

PS

Found in upper montane forests with rocky moist soils. Known population of this species occurs within the planning corridor (NPS 1985c).

Wood saxifrage
Saxifraga mertensiana

YV

PS

Endemic to northern and central Sierra Nevada. Grows on mossy rocks and moist cliffs. Known population of this species occurs within the planning corridor (NPS 1985c).

Bog saxifrage
Saxifraga
oregana

UM

PS

Occurs in yellow pine, red fir, lodgepole, and subalpine forest, in meadows, seeps and under wet conditions, almost always in wetlands between 3,500 and 11,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Yosemite bulrush
Scirpus
clementis

UM

PS

Occurs in subalpine forest, alpine fell-fields, lodgepole forest, meadows, and seeps between 8,000 and 12,000 feet in elevation.

Bolander's skullcap
Scutellaria bolanderi

SF

PS

Occurs in gravelly soils along stream banks and in oak and pine woodlands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Clark's ragwort
Senecio
clarkianus

YV, MG, SF

PS

Found in damp meadows between 4,620 and 8,910 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Streambank butterweed
Senecio
pseudaureus
var. pseudaureus

UM, YV, MG, SF

PS

Found on stream banks and meadows between 7,920 and 10,890 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Groundsel
Senecio serra
var. serra

MG

PS

Found in streambanks and meadows between 7,920 and 10,890 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Giant sequoia
Sequoiadendron giganteum

YV, SF

PS

Grows in three discrete groves in the park, has also been planted in historic and recent landscaped areas. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Small bur-reed
Sparganium
natans

UM, YV, MG, SF

PS

Occurs in freshwater wetlands, in lake-margin and edge habitats, almost always in wetlands under natural conditions. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Ladies' tresses
Spiranthes porrifolia

YV

PS

Found in wet meadows. Known population of this species occurs within the planning corridor (NPS 2004l).

Bladdernut
Staphylea bolanderi

MG

PS

Found in chaparral, foothill woodland, and yellow pine forest in canyon habitats up to 4,500 feet in elevation. Known population of this species occurs adjacent to the planning corridor (NPS 1985c).

Obtuse stellaria
Stellaria obtusa

UM

PS

Found in red fir forest under moist conditions between 6,000 and 7,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Western tofieldia
Tofieldia
occidentalis
ssp. occidentalis

MG, SF

PS

Occurs in wet meadows and bogs in montane coniferous forest below 10,230 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Pacific starflower
Trientalis
latifolia

YV, MG, SF

PS

Found in mixed evergreen forest, redwood forest, and yellow pine forest, equally likely to occur in wetlands or nonwetlands up to 4,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Bowl clover
Trifolium
cyathiferum

YV, MG, SF

PS

Occurs in red fir, yellow pine, and mixed evergreen forest in moist conditions, usually in wetlands, but also in nonwetlands up to 8,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Trillium
Trillium angustipetalum

SF

PS

Found in meadows and moist grasslands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Giant trillium
Trillium chloropetalum

SF

PS

Found in moist woodlands. Known population of this species occurs within the planning corridor (NPS 1985c).

Coast Range triplet-lily
Triteleia
lugens

MG, SF

PS

Found in chaparral and mixed forest edges. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Lesser bladderwort
Utricularia
minor

UM, YV, MG, SF

PS

Occurs in shallow water; almost always in wetlands. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Red huckleberry
Vaccinium
parvifolium

MG, SF

PS

Found in redwood forest, red fir forest, mixed evergreen forest in moist conditions in canyon habitats up to 7,000 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Cusick's speedwell
Veronica
cusickii

UM

PS

Occurs in alpine boulder and rock field, meadows, subalpine coniferous forest, and upper montane coniferous forest. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Common viburnum
Viburnum
ellipticum

MG, SF

PS

Found in yellow pine forest and chaparral up to 4,500 feet in elevation. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

Hall's wyethia
Wyethia elata

SF, YV, MG

PS

Endemic to the central and southern Sierra Nevada. Occurs in open deciduous woodlands and coniferous forests. Known population of this species occurs within the planning corridor (NPS 2004l, NPS 1985c).

Whitneya
Whitneya dealbata

MG

PS

Located in open montane forests and dry meadows and slopes. No reported occurrences, but suitable habitat for this species occurs within the planning corridor.

NOTES:

a Area of Potential Occurrence: UM = Upper Merced River Corridor (main stem and South Fork), YV = Yosemite Valley, MG = Merced River Gorge (includes El Portal Road into Yosemite Valley), SF = South Fork Merced River (Wawona and below Wawona), OC = Outside planning corridor

b Status:

USFWS
FE = federally endangered
FT = federally threatened
FD = federally delisted (status to be monitored for at least five years)
FCL = federal candidate for listing
FC = federal species of concern
FLC = federal species of local concern

State
CE = California endangered
CT = California threatened
CSC = California species of special concern
R = California rare

Park
PS = Yosemite Park sensitive
PW = Yosemite Park watch list