Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
| scientific name | common name(s) | image gallery |
| Abies bracteata | Bristlecone fir | |
| Abies concolor | Balsam fir Colorado fir Concolor fir Oyamel de California Silver fir White balsam White fir | |
| Abies grandis | Giant fir Grand fir | |
| Acalypha californica | California copperleaf | |
| Acer circinatum | Oregon vine maple Vine maple | |
| Achnatherum coronatum | Giant rice grass Giant ricegrass Needle-and-thread grass | |
| Aconitum columbianum | Columbian monkshood | |
| Acacia farnesiana | Huisache Sweet acacia Mealy wattle | |
| Acacia greggii | Catclaw acacia Gregg acacia Long-flower catclaw Una de gato | |
| Achnatherum hymenoides | Indian ricegrass Indian Millet Sandgrass | |
| Achnatherum lettermanii | Letterman's needlegrass | |
| Acer macrophyllum | Bigleaf maple Big-leaf maple | |
| Achillea millefolium | Common yarrow Yarrow Milfoil Western yarrow | |
| Actaea rubra | Red baneberry | |
| Achnatherum speciosum | Desert needlegrass Desert rice grass Spear grass | |
| Adiantum capillus-veneris | Southern maidenhair fern Common maidenhair fern Maidenhair fern Venus hair fern | |
| Adenostoma fasciculatum | Chamise Common chamise Greasewood | |
| Adenostoma sparsifolium | Redshank Ribbon bush Ribbonwood | |
| Aesculus californica | California buckeye | |
| Agave deserti | Desert agave Desert century plant Century plant | |
| Agrimonia gryposepala | Tall hairy agrimony Agrimony | |
| Agave shawii | Coastal agave Boundary century plant Shaw's century plant | |
| Agastache urticifolia | Nettleleaf giant hyssop Nettle-leaf Horsemint | |
| Agave utahensis | Utah agave | |
| Allium amplectens | Narrowleaf onion | |
| scientific name | common name(s) | image gallery |