Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
| scientific name | common name(s) | image gallery |
| Abutilon incanum | Indian mallow Pelotazo Shrubby Indian mallow | |
| Acacia angustissima | Prairie acacia Fern acacia Prairie wattle Whiteball acacia | |
| Acacia berlandieri | Guajillo Berlandier acacia Thornless Catclaw Mimosa Catclaw Round-flowered Catclaw Huajillla Matoral | |
| Acer circinatum | Oregon vine maple Vine maple | |
| Acer negundo | Ash-leaf maple Ash-leaved maple Box elder Boxelder Fresno de guajuco | |
| Actaea racemosa var. racemosa | Black cohosh Black bugbane Bugbane Black snakeroot Fairy candles | |
| Acer rubrum | Red maple Scarlet maple | |
| Acer saccharinum | Silver maple Soft maple White maple | |
| Aesculus californica | California buckeye | |
| Agave deserti | Desert agave Desert century plant Century plant | |
| Agave lechuguilla | Lechuguilla | |
| Agave palmeri | Palmer's century plant Palmer agave Blue century plant | |
| Agave parryi | Parry's agave Century plant Parry agave | |
| Agalinis paupercula var. borealis | Smallflower false foxglove | |
| Agalinis paupercula var. paupercula | Smallflower false foxglove | |
| Agave utahensis | Utah agave | |
| Allowissadula holosericea | Chisos Mountain false Indianmallow Chisos Mtn. False Indian-mallow Velvet-leaf Mallow | |
| Alnus incana ssp. rugosa | Speckled alder | |
| Amelanchier alnifolia | Saskatoon serviceberry Western serviceberry Juneberry | |
| Amphicarpaea bracteata | American hogpeanut | |
| Amorpha fruticosa | Indigo bush False indigo bush False indigo Desert false indigo | |
| Ambrosia trifida | Great ragweed Giant ragweed | |
| Amaranthus tuberculatus | Roughfruit amaranth | |
| Angelica atropurpurea | Purplestem angelica | |
| Andropogon gerardii | Big bluestem Turkeyfoot | |
| Annona glabra | Pond apple | |
| Antennaria howellii ssp. neodioica | Howell's pussytoes | |
| Anaphalis margaritacea | Western pearly everlasting Pearly-everlasting | |
| Antennaria parvifolia | Small-leaf pussytoes Low everlasting Nuttall's pussytoes | |
| Anisacanthus quadrifidus var. wrightii | Flame acanthus Hummingbird bush Wright's desert honeysuckle Wright acanthus Mexican flame Wright's Mexican flame | |
| Apios americana | Groundnut Wild potato Indian potato | |
| Apocynum androsaemifolium | Spreading dogbane Bitterroot Flytrap dogbane | |
| Apocynum cannabinum | Indian hemp Prairie dogbane Dogbane Hemp dogbane | |
| Aquilegia brevistyla | Smallflower columbine | |
| Aquilegia canadensis | Eastern red columbine Wild red columbine | |
| Aquilegia chrysantha var. hinckleyana | Hinckley's golden columbine Yellow columbine Hinckley columbine Capote columbine | |
| Aristolochia californica | California dutchman's pipe | |
| Arabis ×divaricarpa | Spreadingpod rockcress | |
| Aruncus dioicus | Bride's feathers Goat's beard | |
| Aristolochia erecta | Swanflower | |
| Arabis glabra | Tower rockcress | |
| Arbutus menziesii | Pacific madrone Oregon laurel Laurelwood | |
| Arctostaphylos pungens | Pointleaf manzanita Mexican Manzanita | |
| Artemisia tridentata | Big sagebrush Great Basin sagebrush | |
| Arctostaphylos uva-ursi | Kinnikinnick Red bearberry Kinnikinnik | |
| Astragalus alpinus | Alpine milkvetch | |
| Asclepias asperula | Spider milkweed Antelope horns Green-flowered milkweed Spider antelope-horns | |
| Astragalus crassicarpus | Groundplum milkvetch Ground plum | |
| Astragalus drummondii | Drummond's milkvetch | |
| Asclepias incarnata | Swamp milkweed Pink Milkweed | |
| scientific name | common name(s) | image gallery |