P
- Pteris aquilina (1)
- Pteris (4)
- Pterospora andromedea (2)
- Ptilimnium nuttallii (1)
- Puffballs (1)
- Puget Sound Biological Station (12)
- Puget Sound (13)
- Pumpkin Ash (1)
- Punahou School (1)
- Punahou (2)
- Punch Bowl (3)
- Purple Stem Cliffbrake (2)
- Pussytoes (2)
- Pyramid Point (1)
- Pyrola uliginosa (1)
- Pyrus arbutifolia (1)
- Pyrus coronaria (1)
- Pyrus (3)