WHITE FLOWERS:
Utah Yucca - Yucca Utahensis (Agave Family)
Datil Yucca - Yucca Baccata (Agave Family)
Zion Daisy - Erigeron Sionis (Aster Family)
Thompson Eriogonum - Eriogonum thompsonae (Buckwheat Family)
Spider milkweed - Asclepias asperula (Milkweed Family)
Emory seepwillow - Baccharis emoryi (Sunflower Family)
Canaan Daisy - Erigeron canaani (Sunflower Family)
Tufted evening-primrose/Morning lily - Oenothera caespitosa (Evening-Primrose Family)
Pale evening-primrose - Oenothera pallida (Evening-Primrose Family)
Blue Elderberry - Sambucus caerulea (Honeysuckle Family)
Sego lily - Calochortus nuttallii (Lily Family)
False solomon-seal - Smilacina stellata (Lily Family)
Wedgeleaf/Whittlewort - Draba cuneifolia (Mustard Family)
Watercress - Nasturtium officinale (Mustard Family)
Fragrant sand-berbena - Abronia fragrans (Four O'Clock Family)
Angels-trumpet - Datura wrightii (Potato Family)
Stinking milkvetch/Rattleweed - Astragalus praelongus (Legume Family)
Nuttall gilia - Linanthastrum nuttallii (Phlox Family)
Prickly poppy - Argemone munita (Poppy Family)
Utah serviceberry - Amelanchier utahensis (Rose Family)
Poison ivy - Toxicodendron rydbergii (Cashew Family)
Thompson peteria - Peteria thompsonae (Legume Family)
Bottlebush/Desert trumpet - Eriogonum inflatum (Buckwheat Family)
New Mexico thistle - Cirsium neomexicanum (Sunflower Family)
Old man/Sand sagebrush - Artemisia filifolia (Sunflower Family)
Big/Common Sagebrush - Artemisia tridentata (Sunflower Family)
Mountain Mahogany - Cercocarpus intricatus (Rose Family)
Rock Spiraea - Petrophytum caespitosum (Rose Family)
Blue Flax - Linum perenne (Flax Family)
Rattlesnake weed - Euphorbia albomarginata (Spurge Family)

YELLOW FLOWERS:
Creeping mahonia/Oregon grape - Mahonia repens (Barbarry Family)
Fremont mahonia - Mahonia fremontii (Barberry Family)
Showy stoneseed - Lithospermum incisum (Borage Family)
Golden columbine - Aquilegia chrysantha (Buttercup Family)
Western columbine - Aquilegia formosa (Buttercup Family)
Berry prickly-pear - Opuntia phaeacantha (Cactus Family)
Whipple cholla - Opuntia whipplei (Cactus Family)
Arrowleaf balsamroot - Balsamorhiza sagittata (Sunflower Family)
Desert marigold - Baileya multiradiata (Sunflower Family)
Rubber rabbitbrush - Chrysothamnus nauseosus (Sunflower Family)
Bush encelia - Encelia frutescens (Sunflower Family)
Broom snakeweed - Gutierrezia sarothrae (Sunflower Family)
Broom groundsel - Senecio spartioides (Sunflower Family)
Goldenaster - Heterotheca villosa (Sunflower Family)
Goatsbeard - Tragopogon dubius (Sunflower Family)
Yellow camissonia - Camissonia multijuga (Evening-Primrose Family)
Blackbrush - Coleogyne Ramosissima (Rose Family)
Four-wing saltbush - Atriplex canescens (Goosefoot Family)
Madder - Rubia tinctoria (Madder Family)
Globemallow - Sphaeralcea grossulariifolia (Mallow Family)
Zion Draba - Draba asprella (Mustard Family)
Western Wallflower - Erysimum asperum (Mustard Family)
Roundleaf Buffaloberry - Shepherdia rotundifolia (Oleaster Family)
Prince's plume - Stanleya pinnata (Mustard Family)
Trefoil/Deerclover - Lotus plebeius (Legume Family)
Cliffrose - Purshia mexicana (Rose Family)
Bitterbrush - Purshia tridentata (Rose Family)
Skunkbush - Rhus aromatica (Cashew Family)
Butterfly weed - Asclepias tuberosa (Milkweed Family)
Uinta groundsel - Senecio multilobatus (Sunflower Family)
Golden Pea - Thermopsis montana (Legume Family)
Golden cryptanth - Cryptantha confertiflora (Borage Family)

RED FLOWERS:
Cardinal-flower/Scarlet lobelia - Lobelia cardinalis (Bellflower Family)
Canaigre/Wild rhubarb - Rumex hymenosepalus (Buckwheat Family)
Purple torch/Engelmann hedgehog-cactus - Echinocereus engelmannii (Cactus Family)
Claretcup - Echinocereus triglochidiatus (Cactus Family)
Plains pricklypear - Opuntia macrorhiza (Cactus Family)
Arizona thistle - Cirsium arizonicum (Sunflower Family)
Hummingbird flower - Zauschneria latifolia (Evening-Primrose Family)
Common paintbrush - Castilleja chromosa (Figwort Family)
Eastwood/Slickrock paintbrush - Castilleja scabrida (Figwort Family)
Cardinal monkeyflower - Mimulus cardinalis (Firwort Family)
Eaton penstemon - Penstemon eatonii (Figwort Family)
Jones penstemon - Penstemon x jonesii (Figwort Family)
Palmer penstemon - Penstemon palmeri (Figwort Family)
Utah penstemon - Penstemon utahensis (Figwort Family)
Scarlet gilia - Gilia aggregata (Phlox Family)

PINK FLOWERS:
Large four-o'clock - Mirabilis multiflora (Four O'Clock Family)
Utah daisy - Erigeron utahensis (Sunflower family)
Lean clover - Trifolium macilentum (Legume Family)
Searls prairie-clover - Dalea searlsiae (Legume Family)
Filaree/Storksbill - Erodium cicutarium (Geranium Family)
Mexican manzanita - Arctostaphylos pungens (Heath Family)
Mountain snowberry - Symphoricarpos oreophilus (Honeysuckle Family)
Common rockcress - Arabis perennans (Mustard Family)
Zion milkvetch - Astragalus zionis (Legume Family)
Zion sweetpea - Lathyrus brachycalyx (Legume Family)
New Mexico locust - Robinia neomexicana (Legume Family)
Desert Phlox - Phlox austromontana (Phlox Family)
Zion shooting star - Dodecatheon pulchellum (Primrose Family)
Spring-beauty - Claytonia lanceolata (Purslane Family)
Woods rose - Rosa woodsii (Rose Family)
Tamarisk - Tamarix ramosissima (Tamarisk Family)
St. George milkvetch - Astragalus flavus (Legume Family)

PURPLE/BLUE FLOWERS:
Broad-leaved lupine - Lupinus latifolius (Legume Family)
Larkspur/Delphinium - Delphinium andersonii (Buttercup Family)
Blueleaf aster - Aster glaucodes (Sunflower Family)
Smooth penstemon - Penstemon laevis (Figwort Family)
Bluedicks - Dichelostemma pulchellum (Lily Family)
Dorr/Desert sage - Salvia dorrii (Mint Family)
Indigobush - Psorothamnus fremontii (Legume Family)
Spiderwort - Tradescantia occidentalis (Spiderwort Family)
Helleborine - Epipactis gigantea (Orchid Family)

GREEN FLOWERS:
Water birch - Betula occidentalis (Birch Family)
Maidenhair fern - Adiantum capillus (Common Fern Family)
Canyon grape - Citis arizonica (Grape Family)
Mormon/Brigham tea - Ephedra viridis (Ephedra Family)
Utah juniper - Juniperus osteosperma (Cypress Family)
Bigtooth maple - Acer grandidentatum (Maple Family)
Boxelder - Acer negundo (Maple Family)
Gambel oak - Quercus gambelii (Beech Family)
Turbinella live-oak - Quercus turbinella (Beech Family)
Singleleaf ash - Fraxinus anomala (Olive Family)
Velvet ash - Fraxinus velutina (Olive Family)
Ponderosa pine - Pinus ponderosa (Pine Family)
Fremont cottonwood - Populus fremontii (Willow Family)
Aspen - Populus Tremuloides (Willow Family)
Silk-tassel bush - Garrya flavescens (Silk-Tassel Family)
Needle-and-thread grass - Stipa Comata (Grass Family)
Jones reedgrass - Calamagrostis scopulorum (Grass Family)