| Common Names | Scientific Name | Family | Flower Color | Plant Type | Description | Elevation | Introduced | Location | Native | Watershed | Weed |
| amaranth | Amaranthus | Amaranth | Green | | | | Yes | | | | |
| redroot pigweed | Amaranthus retroflexus | Amaranth | Green | Forb | | | | | | | Yes |
| Oregon grape | Mahonia repens | Barberry | Yellow | Shrub | Grape-like berries. Leaves: Prickly toothed leaflets | | | McCall | Yes | | No |
| mountain alder | Alnus incana | Birch | | Tree | A small stream-side tree. Flowers and catkins develop and flower on twigs of the previous year before the leaves come out. | | | McCall | Yes | | Yes |
| Sitka alder | Alnus sinuata | Birch | -catkins- | Tree | | | | | Yes | | No |
| western birch | Betula occidentalis | Birch | | Tree | | | | | | | No |
| blazing star, smoothstem blazingstar | Mentzelia laevicaulis | Blazing Star | Yellow | Herb | | | | | Yes | | No |
| steer's head | Dicentra uniflora | Bleeding Heart | White | Herb | | | | | Yes | | No |
| fiddleneck | Amsinckia intermedia | Borage | Yellow or Purple | Herb | Hay containing fiddleneck is poisonous to livestock | | | | | | Can be |
| rigid fiddleneck | Amsinckia retrorsa | Borage | Goldenrod | | | | | Lower Owyhee River, OR | No | | Yes |
| matted cryptantha | Cryptantha circumscissa | Borage | White | Herb | | | | | | Owyhee | |
| cryptantha | Cryptantha glomerata | Borage | White | Herb | | | | | Yes | | No |
| cryptantha | Cryptantha sp. | Borage | White | Shrub | | | | | | | |
| blue stickseed, Jessica sticktight | Hackelia micrantha | Borage | Light Blue | | | 5000' | | Jenkins Rd. north of Weiser ID | Yes | | |
| salt heliotrope | Heliotropium curassavicum L. | Borage | | Shrub | | | | | Yes | | |
| stickseed, wild forget-me-not | Lappula velutina | Borage | Blue | Herb | | | | | Yes | | No |
| puccoon, wayside gromwell | Lithospermum ruderale | Borage | Yellowish | Herb | | | | McCall | Yes | | No |
| long-flowered bluebell | Mertensia longfloria | Borage | Blue | Herb | | | | | Yes | | No |
| broad-leaf bluebells | Mertensia platyphylla | Borage | Blue | Herb | | | | McCall | Yes | | No |
| broomrape | Orobanche sp. | Broomrape | Yellow, white, purple | | Broomrape | | | | | | |
| buckbrush, snowbush | Ceanothus velutinus | Buckthorn | White | Shrub | Leaves persistent, N fixing genus. Leaves: Shiny upper side | 4150' | | Jenkins Rd. north of Weiser ID, McCall | Yes | | No |
| northern buckwheat, arrowleaf buckwheat | Eriogonum compositum | Buckwheat | White, cream | | | 2850' | | Jenkins Rd. north of Weiser ID | Yes | | |
| yellow buckwheat | Eriogonum flavum | Buckwheat | Yellow, red | Shrub | | | | | Yes | | No |
| cushion buckwheat, oval-leafed eriogonum | Eriogonum ovalifolium | Buckwheat | Cream white | Shrub | | | | | Yes | | No |
| strict buckwheat, blue mountain buckwheat | Eriogonum strictum | Buckwheat | White-pale pink | Shrub | Very low growing. | | | Jordan Valley. ID | Yes | | No |
| sulfur-flowered buckwheat, sulfur buckwheat | Eriogonum umbellatum | Buckwheat | Yellow | Forb | | | | | Yes | | |
| smart weed | Polygonum | Buckwheat | Pink and Yellowish | Forb | | | | | Yes | | |
| erect knotweed | Polygonum argyrocoleon | Buckwheat | Green | Forb | | | | | | | Yes |
| water smartweed | Polygonum coccineum | Buckwheat | Pink | Forb | | | | | Yes | | |
| knot bindweed, black bindweed, ivy bindweed, climbing bindweed | Polygonum convolvulus | Buckwheat | | Forb | | | Yes | | | | Yes |
| Japanese knotweed | Polygonum cuspidatum | Buckwheat | | Forb | | | | | | | Yes |
| sheep sorrel | Rumex acetosella | Buckwheat | Pink, Yellow, Creamy White | Herb | | | | McCall | | | Can be |
| sand dock | Rumex venosus | Buckwheat | Pink and Yellowish | Forb | perennial | | | | Yes | | |
| Monk's Hood | Aconitum columbianum | Buttercup | Purple | Herb | 1.5 to 7 feet tall. | | | McCall | Yes | | No |
| Columbine | Aguilegia sp. | Buttercup | White, yellow | Forb | | | | | | | No |
| Piper's anemone, windflower | Anemone piperi | Buttercup | White | Herb | | | | McCall | Yes | | No |
| rocky mountain red columbine | Aquilegia formosa | Buttercup | Red | Herb | | | | | Yes | | No |
| blue clematis | Clematis columbiana | Buttercup | Blue | Vine | | | | McCall | Yes | | No |
| virgin's bower, western clematis | Clematis ligusticifolia | Buttercup | White, yellow | Vine | | | | | Yes | | No |
| blue larkspur, little larkspur, bicolor larkspur | Delphinium bicolor | Buttercup | Blue | Herb | | 3300' | | Midvale Hill between Mann Creek and Midvale, ID | Yes | | No |
| Wild Peony | Paeonia brownii | Buttercup | Brown-reddish | Herb | Compact near ground. Leaves: Deeply lobed, leathery | | | McCall | Yes | | No |
| sagebrush buttercup | Ranunculus glaberimus | Buttercup | Yellow | Herb | | | | | Yes | | |
| blister buttercup, cursed buttercup, cursed crowfoot, celeryleafed buttercup | Ranunculus sceleratus | Buttercup | Yellow | | | | | Mann Creek, ID | No | | Yes |
| buttercup | Ranunculus sp | Buttercup | Yellow | Herb | | | | McCall | Yes | | No |
| bur buttercup, hornseed buttercup, curveseed butterwort, testiculate buttercup | Ranunculus testiculatus | Buttercup | Yellowish | Herb | | | | | | | Yes |
| meadow rue | Thalictrum occidentale | Buttercup | Brown | Herb | | | | McCall | Yes | | No |
| butterfly bush | Buddleja sp. | Butterfly bush | | Shrub | | | | | No | | Yes |
| skunk cabbage | Lysichitum americanum | Calla-lily | Yellow | Herb | | | | | Yes | | No |
| Cleomella | Cleomella macbrideana | Caper | Yellow | Forb | The cleomella pictured here was found on very poor, bare clay soil in the Succor Creek watershed. | | | | Yes | | |
| yellow beeplant, yellow spiderflower | Cleome lutea | Caper | Yellow | Herb | | | | Lower Owyhee River, OR | Yes | | Can be |
| golden beeplant, golden spiderflower | Cleome platycarpa | Caper | Brilliant Yellow | | | 3200' | | Jenkins Rd. north of Weiser ID | Yes | | |
| rocky mountain beeplant | Cleome serrulata | Caper | Purple | Herb | | | | Malheur River Plain, west of Vale, OR | Yes | | Can be |
| cat-tail | Typha latifolia | Cat-Tail | Brown | Forb | Tall perennial, creeping rhizomes. | | | | Yes | | No |
| yarrow | Achillea millefolium | Composites, Sunflower | White | Herb | | | | McCall | Yes | | No |
| Russian knapweed | Acroptilon repens | Composites, Sunflower | Pink, rose | Shrub | | | Yes | | | | Yes |
| pathfinder, trail plant | Adenocaulon bicolor | Composites, Sunflower | Green, mixed | Forb | | | | McCall | Yes | | No |
| short-beaked agroseris, false dandelion, pale agoseris | Agoseris glauca | Composites, Sunflower | Yellow | Herb | | 2400' | | Mann Creek, ID | Yes | | No |
| pearly everlasting | Anaphalis margaritacea | Composites, Sunflower | White | Herb | | | | McCall | Yes | | No |
| pearly pussytoes | Antennaria anaphaloides | Composites, Sunflower | White, yellow | Herb | | | | McCall | Yes | | No |
| heart-leafed arnica | Arnica cordifolia | Composites, Sunflower | Yellow | Herb | Leaves: Heart shaped | | | McCall | Yes | | No |
| white sagebrush | Artemisia ludoviciana ssp. ludoviciana | Composites, Sunflower | | | | | | Snake River | Yes | | No |
| big sage, sagebrush, big sagebrush | Artemisia tridentata | Composites, Sunflower | Yellow | Shrub | | | | McCall | Yes | Malheur, Owyhee, Snake, Weiser | No |
| showy aster, alpine aster, mountain aster | Aster alpigenus var. haydenii | Composites, Sunflower | Purple | Herb | | | | McCall | Yes | | No |
| hairy balsamroot | Balsamorhiza hirsuta | Composites, Sunflower | Yellow | Herb | Perennial | | | | Yes | | |
| Hooker's balsamroot | Balsamorhiza hookeri | Composites, Sunflower | Yellow | Herb | | 2400', 3300' | | Mann Creek, ID, Midvale Hill between Mann Creek and Midvale, ID | Yes | | No |
| arrowleaf balsamroot | Balsamorhiza sagittata | Composites, Sunflower | Yellow | Herb | | 2500' | | Mann Creek, ID, McCall | Yes | | No |
| devil's beggarticks, leafy beggarticks, leafy sticktight | Bidens frondosa | Composites, Sunflower | | Shrub | | | | Ontario, OR | No | | Yes |
| rough eyelashweed | Blepharipappus scaber | Composites, Sunflower | White | | | | | Jordan Valley. ID | Yes | | |
| littleleaf brickelbush, small-leaved brickellia | Brickellia microphylla | Composites, Sunflower | Green-white | Shrub | | | | | | | |
| diffuse knapweed | Centaurea diffusa | Composites, Sunflower | Light Pink | Forb | | | | | No | | No |
| yellow starthistle | Centaurea solstitialis | Composites, Sunflower | Yellow | Forb | | | | | No | | Yes |
| Chaenactis, Douglas false yarrow, Douglas' dustymaiden | Chaenactis douglasii | Composites, Sunflower | White to pink | Herb | | | | | | | |
| rush skeletonweed | Chondrilla juncea | Composites, Sunflower | Yellow | Forb | | | Yes | | | | Yes |
| gray rabbitbrush, rubber rabbitbrush | Chrysothamnus nauseosus | Composites, Sunflower | Yellow | Shrub | | | | McCall | Yes | | No |
| green rabbitbrush | Chrysothamnus viscidiflorus | Composites, Sunflower | Yellowish | Shrub | | | | | Yes | | Yes |
| chicory | Cichorium intybus | Composites, Sunflower | Blue | Herb | | | | McCall | No | | Can be |
| Canada thistle | Cirsium arvense | Composites, Sunflower | Purple | Herb | Perennial, deep-seated creeping underground roots. Leaves: Spiny, pinnatifid | | | McCall | No | | Noxious |
| Utah thistle | Cirsium utahense | Composites, Sunflower | White | | | | | Along the Snake River between Anex and Farewell Bend, OR | Yes | | |
| bull thistle | Cirsium vulgare | Composites, Sunflower | Purple | Herb | Biennial. | | | McCall | No | | Noxious |
| tapertip hawksbeard, longleaf hawksbeard, long-leafed hawksbeard | Crepis acuminata | Composites, Sunflower | Yellow | Herb | | | | | Yes | | |
| low hawksbeard, modoc hawksbeard | Crepis modocensis | Composites, Sunflower | Yellow | Forb | | | | | | | |
| basin rayless daisy, rayless fleabane, rayless shaggy fleabane | Erigeron concinnus var. aphanactis | Composites, Sunflower | Yellow | Herb | | | | | Yes | | No |
| Wooly Daisy | Erigeron divergens | Composites, Sunflower | Pale lavender | Herb | | | | | Yes | | No |
| Oregon sunshine, wooly sunflower | Eriophyllum lanatum | Composites, Sunflower | Yellow | Herb | | | | | Yes | | No |
| blanket flower | Gaillardia pinnatifida | Composites, Sunflower | Yellow, red | Herb | | | | | Yes | | No |
| curlycup gumweed | Grindelia squarrosa | Composites, Sunflower | Yellow | Herb | | | | | Yes | | Can be |
| broom snakeweed | Gutierrezia sarothrae | Composites, Sunflower | Yellow | Shrub - grass | Poisonous | | | | | | |
| oneflower helianthella, rocky mountain helianthella, rocky mountain little sunflower | Helianthella uniflora | Composites, Sunflower | Brilliant Yellow | Forb | | | | | Yes | | No |
| sunflower | Helianthus annuus | Composites, Sunflower | Yellow | Herb | | | | | Yes | | Can be |
| Cusick's sunflower | Helianthus cusickii | Composites, Sunflower | Brilliant Yellow | | | | | Along the Snake River between Anex and Farewell Bend, OR | Yes | | |
| poverty sumpweed | Iva axillaris | Composites, Sunflower | | Forb | | | | | Yes | | Can be |
| prickly lettuce, compass plant | Lactuca serriola | Composites, Sunflower | Yellow | Herb | | | Yes | | | | Yes |
| rush skeletonplant | Lygodesmia juncea | Composites, Sunflower | | Forb | | | | | Yes | | |
| tall purple aster, hoary aster, hoary tansyaster | Machaeranthera canescens | Composites, Sunflower | Purple | Herb | | | | | Yes | | No |
| nodding microseris | Microseris nutans | Composites, Sunflower | Brilliant Yellow | | | | | Mann Creek, ID | Yes | | |
| Scotch thistle | Onopordum acanthium | Composites, Sunflower | Purple | Forb | | | | | | | Noxious |
| western coneflower | Rudbeckia occidentalis | Composites, Sunflower | Brown | Herb | Brown cone, not showy. | | | McCall | Yes | | No |
| butterweed groundsel | Senecio serra | Composites, Sunflower | | Herb | | | | | | | |
| common groundsel, old-man-in-the-Spring | Senecio vulgaris | Composites, Sunflower | White, yellow | Forb | | | | Ontario, OR | No | | Yes |
| Canada goldenrod | Solidago canadensis | Composites, Sunflower | Yellow | Herb | | | | McCall | Yes | | Can be |
| annual sowthistle | Sonchus oleraceus | Composites, Sunflower | Yellow | Forb | | | | | | | Yes |
| common tansy | Tanacetum vulgare | Composites, Sunflower | Yellow | Herb | | | | | No | | Noxious |
| dandelion | Taraxacum officinale | Composites, Sunflower | Yellow | Herb | | | | McCall | No | | Yes |
| showy townsend daisy | Townsendia florifer | Composites, Sunflower | White | Forb | Annual plant.. | | | | Yes | | |
| yellow salsify, yellow goats beard, Western salsify | Tragopogon dubius | Composites, Sunflower | Yellow | Herb | | | | McCall | | | |
| mule's ear, mule-ears | Wyethia amplexicaulis | Composites, Sunflower | Yellow | Herb | | | | Bull Run, Council, ID, South Fork of the Owyhee River, NV | Yes | | No |
| white-rayed wyethia | Wyethia helianthoides | Composites, Sunflower | White | Herb | | | | McCall | Yes | | No |
| common cockleburr | Xanthium strumarium | Composites, Sunflower | Green | Forb | | | North America | | | | Yes |
| spiny greasebush | Glossopetalon spinescens | Crossosoma | White | Shrub | | | | | Yes | | |
| wild cucumber | Echinocystis lobata | Cucurbit | Cream white | Vine | | | | | Yes | | Can be |
| golden currant | Ribes aureum | Currant or Gooseberry | Brilliant Yellow | Shrub | | | | Lower Owyhee River, OR | Yes | | |
| wax currant | Ribes cereum | Currant or Gooseberry | White | Shrub | | | | | Yes | | No |
| gooseberry | Ribes sp. | Currant or Gooseberry | Green, Red | Shrub | | | | McCall | Yes | | No |
| currant | Ribes spathianum | Currant or Gooseberry | Black | Shrub | | | | | | | |
| sticky currant | Ribes viscosissimum | Currant or Gooseberry | White | Shrub | | | | McCall | Yes | | No |
| western juniper | Juniperus occidentalis | Cypress | -none- | Tree | | | | McCall | Yes | | Yes |
| Utah juniper | Juniperus osteosperma | Cypress | Yellowish | Tree | | | | | Yes | | |
| spreading dogbane, dogbane | Apocynum androsaemifolium | Dogbane | Pink | Herb | Poisonous juice. | | | | Yes | | Noxious |
| hemp dogbane | Apocynum cannabinum L. | Dogbane | White | | | | | | | | Noxious |
| red-osier dogwood | Cornus stolonifera | Dogwood | White | Shrub | Red branched shrub. | | | McCall | Yes | | No |
| netleaf hackberry | Celtis reticulata | Elm | Green | Tree | | | | | | | |
| Booths evening-primrose | Camissonia boothii | Evening Primrose | | Forb | | | | | Yes | | |
| club fruit | Camissonia claviformus | Evening Primrose | Yellow | Herb | | | | | Yes | | No |
| pinkfairies, pink fairies, deer horn, ragged robin, elkhorn clarkia | Clarkia pulchella | Evening Primrose | Pink, purple | Herb | | 2900' | | Jenkins Rd. north of Weiser ID | Yes | | No |
| fireweed | Epilobium angustifolium | Evening Primrose | Purple | Herb | | | | McCall | Yes | | No |
| panicle willowweed | Epilobium brachycarpum | Evening Primrose | Purple, white | Forb | | | | | | | Yes |
| Watson's willow -herb | Epilobium watsonii | Evening Primrose | Purple | Herb | | | | | | | |
| small-flowered gaura | Gaura mollis | Evening Primrose | Pink, Green | Forb | | | | | Yes | | |
| desert evening primrose | Oenothera caespitosa | Evening Primrose | White | Forb | | | | | | | |
| Pale evening primrose | Oenothera pallida Lindl. | Evening Primrose | Pale pink | Forb | | | | | Yes | | |
| tansey-leaf evening primrose | Oenothera tanacetifolia | Evening Primrose | Yellow | Herb | | | | | Yes | | No |
| , | | Figwort or Snapdragon | Purple | Herb | | | | McCall | Yes | | No |
| Cusick's Indian paintbrush | Castilleja cusickii | Figwort or Snapdragon | Yellow | Herb | | | | | Yes | | No |
| Indian Paintbrush | Castilleja miniata | Figwort or Snapdragon | Orange, faded | Herb | Rare in camp. | | | McCall | Yes | | No |
| Tweedy's snowlover | Chionophila tweedyi | Figwort or Snapdragon | Pale lavender | Forb | Tweedy's snowlover is a very common understory plant at elevations of 7,500 to 9,000 feet in the Central Mountains of Idaho. | | | | | | |
| Blue-eyed Mary | Collinsia parviflora | Figwort or Snapdragon | Blue and white | Herb | Very small plant, flowers. | 3300' | | McCall, Midvale Hill between Mann Creek and Midvale, ID | Yes | | No |
| butter and eggs, bread and butter | Linaria vulgaris | Figwort or Snapdragon | Yellow | Herb | | | | McCall | No | | Noxious, Yes |
| Cusick's monkeyflower | Mimulus cusickii | Figwort or Snapdragon | Magenta | Herb | | | | | Yes | | No |
| Lewis' monkeyflower | Mimulus lewisii | Figwort or Snapdragon | Magenta | Herb | | | | McCall | Yes | | No |
| dwarf purple monkeyflower | Mimulus nanus | Figwort or Snapdragon | Pink, purple | Herb | | | | | Yes | | No |
| little yellow monkeyflower | Mimulus primuloides | Figwort or Snapdragon | Yellow | Herb | | | | | Yes | | No |
| elephanthead | Pedicularis groenlandica | Figwort or Snapdragon | Pink, purple | Herb | | | | | Yes | | No |
| parrot's beak, sickletop | Pedicularis racemosa | Figwort or Snapdragon | Cream, others | Herb | Leaves: Leaves toothed | | | McCall | | | |
| sanddune penstemon, sandhill penstemon, sharpleaf penstemon, sand penstemon | Penstemon acuminatus | Figwort or Snapdragon | Purple, blue | Herb | | | | Malheur Co., OR | Yes | | No |
| Cusick's penstemon, Cusick's beardtongue | Penstemon cusickii | Figwort or Snapdragon | blue - purple | | | | | Along the Snake River between Anex and Farewell Bend, OR | Yes | | No |
| hot-rock penstemon | Penstemon deustus | Figwort or Snapdragon | White | Herb | | | | | Yes | | No |
| firecracker penstemon | Penstemon eatonii | Figwort or Snapdragon | Red | Forb | | | | | Yes | | |
| glandular penstemon, stickystem penstemon | Penstemon glandulosus | Figwort or Snapdragon | light purple | | | 3800' | | Jenkins Rd. north of Weiser ID | Yes | | No |
| globe penstemon | Penstemon globosus | Figwort or Snapdragon | Purple | Forb | Globe Penstemon | | | | | | |
| Palmer's penstemon | Penstemon palmeri | Figwort or Snapdragon | White-pale pink | Herb | | | | | No | | No |
| shortlobe penstemon, short-lobed penstemon | Penstemon seorsus | Figwort or Snapdragon | Purple, blue | Herb | | 3900' ro 4700' | | Jenkins Rd. north of Weiser ID | Yes | | No |
| showy penstemon, royal penstemon, sagebrush penstemon | Penstemon speciosus | Figwort or Snapdragon | Purple, blue | Shrub | | | | | Yes | | |
| Wilcox's penstemon | Penstemon wilcoxii | Figwort or Snapdragon | Purple, blue | Herb | Common summer flower at McCall, ID. | 4150' | | Jenkins Rd. north of Weiser ID, McCall | Yes | | No |
| common mullein | Verbascum thapsus | Figwort or Snapdragon | Yellow | Herb | | | | McCall | No | | Can be |
| moth mullein | Verbasum blattaria | Figwort or Snapdragon | White/Purple | | | | Yes | | | | No |
| American speedwell | Veronica americana | Figwort or Snapdragon | Purple, blue | Herb | | | | McCall | | | |
| wild flax, blue flax | Linum perenne | Flax | Blue | Forb | | | | | | | |
| white frasera | Frasera montana | Gentian | White, cream | Herb | Small perrenial. | | | McCall | Yes | | No |
| explorer's bog gentian, northern gentian | Gentiana acuta | Gentian | Purple, blue | Herb | | | | | Yes | | No |
| storksbill, filaree | Erodium cicutarium | Geranium | Pink, purple | Herb | Leaves: Pinnate-pinnatifid. Native of Europe or Asia. | | | McCall | No | | No |
| sticky geranium, sticky purple geranium | Geranium viscosissimum | Geranium | Pink, purple | Herb | Leaves: Palmately divided | 4725' | | Jenkins Rd. north of Weiser ID, McCall | Yes | | No |
| fourwing saltbrush | Atriplex canescens | Goosefoot | | Shrub | | | | | Yes | | |
| shadscale saltbush | Atriplex confertifolia | Goosefoot | | Shrub | | | | | Yes | | |
| forage kochia | Bassia prostrata | Goosefoot | Green, Red | | | | Yes | | | | No |
| spiny hopsage | Grayia spinosa | Goosefoot | Pink, Yellow, Creamy White | Shrub | | | | Along the Snake River between Anex and Farewell Bend, OR, Reinhart Butte, Vale OR | Yes | | No |
| halogeton | Halogeton glomeratus | Goosefoot | Green-white | Forb | | | Yes | | | | Yes |
| kochia | Kochia scoparia | Goosefoot | | Forb | | | | | | | Noxious |
| winterfat, white sage | Krascheninnikovia lanata | Goosefoot | White | Shrub | | | | | | | |
| Russian thistle, tumbleweed | Salsola kali | Goosefoot | Pink, purple | Forb | A Eurasian annual weed of dry, often alkaline areas. | | | | | | Yes |
| greasewood | Sarcobatus vermiculatus | Goosefoot | Pale yellow | Shrub | This plant is moderately poisonous to sheep and cattle if consumed in large amounts. Its toxicity increases as the plant matures. | | | | Yes | | No |
| Indian ricegrass | Achnatherum hymenoides | Grass | | Grass | perennial | | | | Yes | | |
| jointed goatgrass | Aegilops cylindrica | Grass | Green-yellow | Grass | | 3200' | | Jenkins Rd. north of Weiser ID | No | | Yes |
| purple threeawn grass | Aristida purpurea | Grass | Purple, Green | Grass | | | | | Yes | | No |
| cheat grass, downy brome | Bromus tectorum | Grass | Green | Grass | | | Yes | | | | Yes |
| hairy crabgrass | Digitaria sanguinalis | Grass | | Grass | | | Yes | | | | Yes |
| alkali saltgrass | Distichlis stricta | Grass | | Grass | | | | | Yes | | |
| barnyard grass | Echinochloa muricata | Grass | Green | Grass | | | Yes | | | | Yes |
| squirreltail | Elymus elymoides | Grass | | Grass | | | | Juniper Ridge, OR | Yes | | |
| wild barley, mouse barley, hare barley | Hordeum leporinum | Grass | | Grass | | | Yes | Lower Owyhee River, OR | No | | Yes |
| Great Basin wildrye, giant wildrye, basin wildrye | Leymus cinereus | Grass | Green, mixed | Grass | | | | Along the Snake River between Anex and Farewell Bend, OR | Yes | | |
| annual bluegrass | Poa annua | Grass | Green | Grass | | | | | | | |
| bulbous bluegrass | Poa bulbosa | Grass | Green | Grass | | | | | | | |
| rabbitsfoot | Polypogon Monspeliensis | Grass | Yellowish | Grass | | | | | | Malheur | |
| common rye | Secale cereale | Grass | | Grass | | | Yes | | | | Yes |
| green foxtail | Setaria viridis | Grass | Green, mixed | Grass | | | Yes | | | | |
| medusahead rye | Taeniatherum caput-medusae | Grass | Green-yellow | Grass | | | Yes | Jordan Valley. ID | No | | Yes |
| showy downiniga | Downiniga elegans | Harebell | Purple | Herb | | | | | Yes | | No |
| white mountain heather | Cassiope mertensiana | Heath | White | Shrub | small, white, bell-like flowers | | | | Yes | | No |
| Prince's-Pine | Chimaphila umbellata | Heath | Pink, rose | Shrub | Very short shrubby perenial. | | | McCall | Yes | | No |
| alpine laurel, swamp laurel | Kalmia microphylla | Heath | Pink, purple | Shrub | | | | | Yes | | No |
| labrador tea | Ledum groenlandicum | Heath | White | Shrub | | | | | Yes | | No |
| pink heather | Phyllodoce breweri | Heath | Pink | Shrub | | | | | Yes | | No |
| red heather | Phyllodoce empetriformis | Heath | Pink, purple | Shrub | | | | | | | |
| green pyrola | Pyrola chlorantha | Heath | Green-white | Herb | | | | McCall | Yes | | No |
| sidebells pyrola | Pyrola secunda | Heath | White | Herb | 9-12" tall. | | | McCall | Yes | | No |
| lesser pyrola | Pyrola sp | Heath | Pink, rose | Herb | | | | McCall | Yes | | No |
| grouse whortleberry, red huckleberry | Vaccinium scoparium | Heath | Red | Shrub | Leaves: Very small shrub | | | McCall | Yes | | No |
| huckleberry | Vaccinium sp | Heath | Blue | Shrub | | | | McCall | Yes, Yes | | No |
| twinflower | Linnaea borealis | Honeysuckle | Pink | Shrub | A very small shrub like vine that grows as an understory in pine forests, 4 in tall, hugs soil or rock surface. | | | McCall | Yes | | No |
| black twinberry | Lonicera involucrata | Honeysuckle | Pale yellow | Shrub | | | | McCall | Yes | | No |
| red twinberry, Utah honeysuckle | Lonicera utahensis | Honeysuckle | Pale Yellow or Red | Shrub | | | | McCall | Yes | | No |
| blue elderberry | Sambucus cerulea | Honeysuckle | Cream white | Shrub | | | | McCall | Yes | | No |
| black elderberry | Sambucus racemosa | Honeysuckle | Cream white | Shrub | Pith in center of stem. Leaves: Pinnately divided | | | McCall | Yes | | No |
| snowberry | Symphoricarpos oreophilus | Honeysuckle | White to pink | Shrub | Conspicuous white fruit. | | | McCall | Yes | | No |
| horsetail | Equisetum arvense | Horsetail | -none- | Forb | | | | McCall | Yes | | No |
| scouringrush | Equisetum hyemale | Horsetail | Brown | Forb | | | | | Yes | | Yes |
| Syringa | Philadelphus lewisii | Hydrangea | Cream white | Shrub | | | | | Yes | | No |
| Iris Sp. | | Iris | Purple, Cream, Yellow | | perennial | | | | Yes | | |
| yellow flag | Iris pseudacorus | Iris | Yellow | Forb | Introduced plant, conspicuous along edges of ponds, irrigation canals. | | | | No | | Can be |
| indigo bush, false indigo | Amorpha fruticosa | Legume or Pea | Purple | Shrub - Tree | | | | | Yes | | Yes |
| curvepod milkvetch, sickle milkvetch | Astragalus curvicarpus | Legume or Pea | Yellow | Herb | | | | Along the Snake River between Anex and Farewell Bend, OR | Yes | | No |
| threadstalk milkvetch, basalt milkvetch | Astragalus filipes | Legume or Pea | Yellow | Forb | | | | | Yes | | Yes |
| Mulford's milkvetch | Astragalus mulfordiae | Legume or Pea | Purple, white | Herb | | | | | Yes | | No |
| Blue Mountain prairie clover, Western prairie clover | Dalea ornata | Legume or Pea | Pink, purple | Herb | | | | | Yes | | No |
| Searl's prairie clover | Dalea searlsiae | Legume or Pea | Purple | Forb | | | | | | | |
| wild licorice | Glycyrrhiza lepidota | Legume or Pea | | Forb | | | | | Yes | | Yes |
| few-flowered peavine, fewflower pea | Lathyrus pauciflorus | Legume or Pea | Purple | Vine | | 3800' | | Jenkins Rd. north of Weiser ID | Yes | | No |
| bushy peavine | Lathyrus rigidus | Legume or Pea | White | Vine | | | | | Yes | | No |
| bird's-foot trefoil | Lotus corniculatus | Legume or Pea | Brilliant Yellow | | | | | Annex, OR | No | | No |
| spur lupine | Lupinus arbustus | Legume or Pea | Yellow, white, purple | Shrub | | | | | Yes | | No |
| kellogg spurred lupine | Lupinus caudatus | Legume or Pea | White-pale pink | Herb | | | | | Yes | | No |
| bluebonnet, lupine | Lupinus sp. | Legume or Pea | Blue | Herb | Leaves: Palmate compound | | | McCall | Yes | | No |
| white sweetclover | Melilotus alba | Legume or Pea | White | Forb | | | Yes | | | | |
| yellow sweetclover | Melilotus officinalis | Legume or Pea | Yellow | Herb | | | Yes | | | | Yes |
| golden pea | Thermopsis montana | Legume or Pea | Yellow | Herb | Not palatable to livestock | | | McCall | Yes | | No |
| strawberry clover | Trifolium fragiferum | Legume or Pea | Light Pink | Forb | | | Yes | | | | No |
| big-head clover, largehead clover | Trifolium macrocephalum | Legume or Pea | Pink and Yellowish | Forb | | 2400' | | Mann Creek, ID | Yes | | No |
| red clover | Trifolium pratense | Legume or Pea | Pink | Herb | | | | McCall | No | | No |
| white clover, ladino clover, Dutch clover | Trifolium repens. | Legume or Pea | White | | | | | Rome, OR | No | | No |
| sego lily | | Lily | | | | | | | Yes | | |
| taper-tip onion | Allium acuminatum | Lily | Purple | | | | | | Yes | | No |
| Douglas wild onion | Allium douglasii | Lily | Pink | | | | | | Yes | | No |
| brodiaea, Douglas' brodiaea | Brodiaea douglasii | Lily | Purple, blue | | | | | | Yes | | No |
| wide-fruit mariposa lily | Calochortus eurycarpus | Lily | White-pale pink | | | | | | Yes | | No |
| sego lily | Calochortus nuttallii | Lily | White | Forb | | | | | Yes | | No |
| camas, black camas | Camassia quamash | Lily | Blue | | | | | Mann Creek Res. ID, McCall | Yes | | No |
| Clintonia, Queen's Cup | Clintonia uniflora | Lily | Waxy white | Forb | Short perennial, usually has single flowers. | | | McCall | Yes | | No |
| glacier lily | Erythronium grandiflorum | Lily | Yellow | Forb | | | | | Yes | | No |
| yellowbell, yellow bell, yellow fritillary | Fritillaria pudica | Lily | Yellow | Forb | | | | Lower Owyhee River, OR | Yes | | No |
| sand lily, star lily, mountain lily | Leucocrinum montanum | Lily | White | Forb | | | | | | | |
| False Solomon's Seal | Smilacina racemosa | Lily | White | | | | | McCall | Yes | | No |
| wild lily of the valley | Smilacina stellata | Lily | White | Forb | Alternate zig zag pattern of leaves and flowers. | | | McCall | Yes | | No |
| twisted stalk | Streptopus amplexifolius | Lily | Purple, white | | | | | McCall | Yes | | No |
| trillium | Trillium ovatum | Lily | White to pink | Forb | | | | McCall | Yes | | No |
| false hellebore | Veratrum viride | Lily | Green, mixed | Forb | False hellebore is a common plant of mid and high elevation marshes, growing exclusively on soils that have a continual source of free water. | | | McCall | Yes | | No |
| beargrass, squaw grass | Xerophyllum tenax | Lily | White | Forb | | | | | Yes | | No |
| death camas | Zigadenus elegans | Lily | White | Forb | | | | | Yes | | No |
| purple loosestrife | Lythrum salicaria | Loosestrife | Purple | Herb | | | | | No | | Noxious |
| cleavers | Galium aparine | Madder | | Herb | | | | McCall | | | Yes |
| sweetscented bedstraw, fragrant bedstraw | Galium triflorum | Madder | White | Herb | | | | Mann Creek Res. ID | ? | | Yes |
| velvetleaf | Abutilon theophrasti | Mallow | Yellow | Shrub | | | Yes | | | | No |
| common mallow, cheeseweed | Malva neglecta | Mallow | Purple, white | Herb | | | | | | | Yes |
| Oregon checker-mallow, Oregon checkerbloom | Sidalcea oregana | Mallow | light purple | | | 3980' | | Jenkins Rd. north of Weiser ID, Mann Creek Res. ID | Yes | | |
| red globe mallow | Sphaeralcea coccinea | Mallow | Red, Orange | Forb | | | | | | | |
| gooseberry leafed globe mallow | Sphaeralcea grossulariifolia | Mallow | Orange, Yellow | Forb | | | | | | | |
| orange globe mallow | Sphaeralcea munroana | Mallow | Orange, Yellow | Herb | | | | | Yes | | No |
| small flower globe mallow | Sphaeralcea parvifolia | Mallow | Orange, Yellow | Forb | | | | | | | |
| rocky mountain maple | Acer glabrum | Maple | Green-yellow | Tree | | | | McCall | Yes | | No |
| box elder | Acer negundo | Maple | Bright green | Tree | Medium sized tree | | | | | | No |
| showy milkweed | Asclepias speciosa | Milkweed | Pink, purple | Herb | | | | Hoover Road, Mann Creek, ID | Yes, Yes | | Can be |
| henbit , henbit deadnettle | Lamium amplexicaule | Mint | Purple | Forb | | | Yes | | | | |
| hoarhound | Marrubium vulgare | Mint | White-pale pink | Herb | | | | McCall | | | |
| monardella | Monardella odoratissima | Mint | light purple | Shrub | | | | | Yes | | No |
| purple sage | Salvia dorrii var. carnosa | Mint | Purple | Shrub | | | | | Yes | | |
| Field bindweed | Convolvulus arvensis | Morningglory | White/Purple | Herb | | | Europe | | | | Yes |
| dodder | Cuscuta sp. | Morningglory | White, cream | Vine | | | | | | | Yes |
| yellow alyssum | Alyssum alyssoides | Mustard | Yellow | | | | | Lower Owyhee River, OR | No | | |
| black mustard | Brassica nigra | Mustard | Yellow | Forb | | | Yes | | | | Yes |
| shepherd's purse | Capsella bursa-pastoris | Mustard | White | Herb | Flat, triangular pods are all along a fine stalk. Leaves are pinnatifid. The plant forms a rosette.
| | | McCall, Nyssa, OR, Ontario, OR | No | | Yes |
| hoary cress, whitetop | Cardaria spp. | Mustard | White | Herb | | | | | No | | Noxious |
| blue mustard, tenella mustard, purple mustard, crossflower | Chorispora tenella | Mustard | blue - purple | Forb | | | Yes | Ontario, OR | No | | Noxious |
| flixweed | Descurainia sophia | Mustard | Yellow | Forb | | | | | | | Noxious |
| tansy mustard | Descurainia sp. | Mustard | Yellow | Herb | | | | McCall | | | |
| spring Whitlow-grass, spring draba | Draba verna | Mustard | White, yellow | Grass | Plant 2-3 cm. Widely dispersed. | 3300' | | Midvale Hill between Mann Creek and Midvale, ID, Ontario, OR | Yes | | |
| perennial pepperweed | Lepidium latifolium L | Mustard | White, cream | Forb | | | Yes | | | | |
| clasping pepperweed | Lepidium perfoliatum | Mustard | Green-yellow | Forb | | | | | | | |
| bladder pod | Lesquerella douglasii | Mustard | Yellow | Herb | | | | | Yes | | No |
| tumble mustard | Sisymbrium altissimum | Mustard | Yellowish | Forb | | | Yes | | | | Yes |
| Prince's plume | Stanleya pinnata | Mustard | | Shrub | | | | | Yes | | |
| thick-leaf thelypody, cut-leaf thelypody | Thelypodium laciniatum | Mustard | White/Purple | Forb | | | | | Yes | | |
| pellitory | Parietaria pensylvanica | Nettle | | Forb | | | | | Yes | | Yes |
| stinging nettle | Urtica dioica | Nettle | Green | Forb | | | | | Yes | | |
| Russian Olive | Elaeagnus angustifolia | Oleaster | | Tree | | | | | No | | Yes |
| calypso orchid, fairy slipper | Calypso bulbosa | Orchid | Pink, purple | Forb | | | | McCall | Yes | | No |
| spotted coral-root | Corallorhiza maculata | Orchid | Brown, red, white | | Saprophyte, forest floor. Leaves: No green leaves | | | McCall | Yes | | No |
| early coral-root | Corallorhiza trifida | Orchid | Yellowish | | Saprophyte, forest floor. Leaves: No green leaves | | | McCall | Yes | | No |
| mountain lady's slipper | Cypripedium montanum | Orchid | Brown and White | Forb | | | | | Yes | | No |
| rattlesnake plantain | Goodyera oblongifolia | Orchid | -dull- | Forb | Forest floor. Leaves: White stripe on midrib | | | McCall | Yes | | No |
| bog orchid | Habenaria dilatata | Orchid | White | Forb | Thin spikelike raceme of flowers. | | | McCall | Yes | | No |
| water hemlock | Cicuta douglasii | Parsley | White | Herb | Poisionous plant, wet soil. Leaves: 1-3 times pinnate | | | McCall | | | Noxious |
| poison hemlock | Conium maculatum | Parsley | White | Herb | | | | | | | Yes |
| plains cymopterus, plains springparsley | Cymopterus acaulis | Parsley | Brilliant Yellow | Herb | | | | Lower Owyhee River, OR | Yes | | |
| Hayden's cymopterus | Cymopterus bipinnatus | Parsley | White | | | 2400' | | Mann Creek, ID | Yes | | |
| Queen Anne's lace, wild carrot | Daucus carota | Parsley | White | Herb | | | | | | | |
| cow parsnip | Heracleum lanatum | Parsley | White | Herb | Photosensitive skin reaction, wet soil. Is poisonous to humans. | | | McCall | Yes | | No |
| cous biscuit-root, cous-root desert-parsley | Lomatium cous | Parsley | Yellow | Forb | | | | | Yes | | |
| fern-leafed lomatium, fern-leafed desert parsley, fernleaf biscuitroot, desert parsley | Lomatium dissectum | Parsley | | Forb | | 2500' | | Mann Creek, ID | Yes | | No |
| Gray's lomatium, Gray's desert parsley | Lomatium grayi | Parsley | Yellow | Forb | | | | Lower Owyhee River, OR | Yes | | |
| barestem lomatium, barestem desert parsley, barestem biscuitroot | Lomatium nudicaule | Parsley | Yellowish | Herb | | 2400' | | Mann Creek, ID | Yes | | No |
| nine-leaved desert parsley | Lomatium triternatum | Parsley | Yellow | Herb | | | | | Yes | | No |
| Canby's lomatium | Lomatiun canbyi | Parsley | White-pale pink | Herb | | | | | Yes | | |
| sweet cicely | Osmorhiza chilenis | Parsley | White | Herb | | | | | Yes | | No |
| grand collomia, large-flowered collomia | Collomia grandiflora | Phlox | White, Orange | Forb | | | | | | | |
| narrow-leaf collomia, tiny trumpet | Collomia linearis | Phlox | light purple | Forb | | 4150' | | Jenkins Rd. north of Weiser ID | Yes | | No |
| scarlet gilia, skyrocket | Ipomopsis aggregata var. aggregata | Phlox | Red | Herb | | | | McCall | Yes | | No |
| scarlet gilia, skyrocket | Ipomopsis aggregata var. attenuata | Phlox | Light Pink and Orange | Herb | | | | Between US Hwy 95 and Jordan Craters, OR | Yes | | |
| Snake River phlox | Phlox colubrina | Phlox | White to pink | Shrub | | | | | Yes | | No |
| Hood's phlox | Phlox hoodii | Phlox | White to pink | Herb | | | | | Yes | | No |
| long-leafed phlox | Phlox longfolia | Phlox | White to pink | Herb | | | | | Yes | | No |
| Jacob's Ladder | Polemonium pulcherrimum | Phlox | Blue | Herb | Leaves: Alt. pinnately compound | | | | Yes | | No |
| grand fir | Abies grandis | Pine | | Tree | Intergrades with white fir. Leaves: Needles, singular | | | McCall | Yes | | No |
| subalpine fir | Abies lasiocarpa | Pine | | Tree | | | | | Yes | | No |
| western larch | Larix occidentalis | Pine | | Tree | | | | McCall | Yes | | No |
| Englemann spruce | Picea engelmannii | Pine | | Tree | Spire shaped tree, 4 angled needles. Leaves: Sharp needles | | | McCall | Yes | | No |
| lodgepole pine | Pinus contorta | Pine | | Tree | Medium length needles, thin bark, small cones. Leaves: needles in 2's | | | McCall | Yes | | No |
| limber pine | Pinus flexilis | Pine | | Tree | | | | | Yes | | No |
| sugar pine | Pinus lambatiana | Pine | | Tree | | | | | Yes | | |
| ponderosa pine | Pinus ponderosa | Pine | | Tree | Long needled, thick puzzle bark. Leaves: Needles in 3's | | | McCall | Yes | | No |
| Douglas fir | Pseudotsuga menziesii | Pine | | Tree | Needles around stem, tounges on cones. Leaves: Needles singular | | | McCall | Yes | | No |
| western hemlock | Tsuga heterophylla | Pine | | Tree | | | | | Yes | | No |
| jagged chickweed | Holosteum umbellatum | Pink | White | | | | | Ontario, OR | No | | Yes |
| bigleaf sandwort, franklin's sandwort | Moehringia macrophylla | Pink | White | Herb | previously known as Arenaria macrophylla | | | | Yes | | No |
| bouncingbet, soapwort | Saponaria officinalis | Pink | White-pale pink | Herb | European origin, escaped as a weed, toxic to livestock but seldom consumed. | | | | No | | Yes |
| bracken fern | Pteridium aquilinum | Polypod | -none- | Herb | Bracken fern is a common forest understory fern. | | | McCall | Yes | | No |
| sacred datura, angel's trumpet | Datura innoxia | Potato | White | Forb | | | | | Yes | | Yes |
| Jimsonweed | Datura stramonium | Potato | White/Purple | Shrub | | | Yes | | | | |
| hairy night shade | Solanum sarrachoides | Potato | | Forb | There berries are Green, brown, and yellow when matured. | | Yes | | | | |
| Jeffrey's shooting star | Dodecatheon jeffreyi | Primrose | Pink, purple | Herb | | | | | Yes | | No |
| shootingstar | Dodecatheon pulchellum | Primrose | Purple | Herb | | | | | Yes | | No |
| spring beauty | Claytonia lanceolata | Purslane | White to pink | Herb | | | | | Yes | | No |
| Bitterroot | Lewisia rediviva | Purslane | White/Purple | Herb | | | | | Yes | | No |
| Miner's lettuce | Montia perfoliata | Purslane | White | Herb | | | North America | | | | |
| common purslane | Portulaca oleracea | Purslane | Yellow | Herb | Common purslane | | | | | | Yes |
| serviceberry | Amelanchier alnifolia | Rose | White | Shrub | 5 petals. | | | McCall | Yes | | No |
| curlleaf mountain-mahogany | Cercocarpus ledifolius | Rose | Green-white | Evergreen shrub | | | | | Yes | | |
| black hawthorn | Crateagus douglasii | Rose | Green, Red | | | 3800' | | Jenkins Rd. north of Weiser ID | Yes | | |
| wild strawberry | Fragaria vesca | Rose | White | Herb | | | | McCall | Yes | | No |
| grimy mousetail | Ivesia rhypara | Rose | | Forb | | | | | Yes | | |
| ninebark | Opulaster malvaceus | Rose | White | Shrub | | | | McCall | Yes | | No |
| squaw apple, wild crab apple | Peraphyllum ramosissimum | Rose | White | | | 2900' | | Ironsides, OR, Jenkins Rd. north of Weiser ID, Mann Creek Res. ID | Yes | | |
| cinquefoil | Potentilla spp. | Rose | Yellow | Herb | | | | McCall | Yes | | No |
| diverse-leafed cinquefoil | Potentillia diversifolia | Rose | Yellow | Forb | | | | | Yes | | No |
| bittercherry | Prunus emarginata | Rose | White | Shrub - Tree | | | | McCall | Yes | | No |
| wild plum | Prunus sp. | Rose | | Tree | | | | | | | Yes |
| common chokecherry | Prunus virginiana | Rose | White | Tree | | | | McCall | Yes | | No |
| bitterbrush | Purshia tridentata | Rose | Yellow | Shrub | Nearby Camp Morrison. | | | | Yes | | No |
| Woods' rose | Rosa woodsii | Rose | Pink | Shrub | | | | | Yes | | |
| red raspberry | Rubus idaeus | Rose | White | Shrub | | | | McCall | Yes | | No |
| thimbleberry | Rubus parviflorus | Rose | White | Shrub | Red edible berries, very large leaves. | | | McCall | Yes | | No |
| ocean spray | Sericotheca discolor | Rose | Cream white | Shrub | | | | | Yes | | No |
| Mountain-ash, rowan, mountain ash | Sorbus sp | Rose | Cream white | Shrub - Tree | | | | McCall | Yes | | No |
| shiny-leaf spirea | Spiraea betulifolia | Rose | White | Shrub | | | | McCall | Yes | | No |
| Douglas Spirea | Spiraea douglasii | Rose | Pink, rose | Shrub | | | | McCall | Yes | | No |
| pyramid spirea | Spiraea pyramidata | Rose | Pink | Shrub | | | | McCall | Yes | | No |
| sub-alpine spirea | Spireae densiflora | Rose | Pink | Shrub | | | | | Yes | | No |
| prairie star, woodland star | Lithophragma heterophylla | Saxifrage | White | Herb | | | | | Yes | | No |
| yellow nutsedge | Cyperus esculentus | Sedge | Yellowish | Sedge | | | | | No | | Noxious |
| bull rush | Scirpus spp. | Sedge | Brown | Sedge | | | | | Yes | | No |
| prostate spurge, milk spurge | Chamaesyce maculata | Spurge | | Forb | | | | | Yes | | Yes |
| turkey mullein, doveweed | Eremoearpus setigerus | Spurge | Light Green | Forb | | | | | Yes | | |
| leafy spurge | Euphorbia esula | Spurge | Yellow | Forb | | | Yes | | | | Yes |
| petty spurge | Euphorbia peplus | Spurge | | Forb | | | Yes | | | | Yes |
| St. John's Wort | Hypericum formosum var. Scouleri | St. John's Wort | Yellow | Herb | | | | | | | Yes |
| stonecrop | Sedum sp. | Stonecrop | Yellow | Herb | | | | | Yes | | No |
| smooth sumac | Rhus glabra | Sumac | Red | Shrub - Tree | | | | | Yes | | |
| poison ivy | Toxicodendron rydbergii | Sumac | | Shrub | | | | | Yes | | Can be |
| silver sagebrush | Artemisia cana Pursh | Sunflower | | | perennial | | | | Yes | | |
| tarragon | Artemisia dracunculus | Sunflower | | Shrub | | | | | Yes | | |
| wormwood, white sage brush | Artemisia ludoviciana | Sunflower | | Shrub | | | | | Yes | | |
| brickellbush | Brickellia Ell. | Sunflower | | | | | | | | | |
| musk thistle | Carduus nutans | Sunflower | Purple | Forb | | | Yes | | | | Yes |
| spotted knapweed | Centaurea maculosa | Sunflower | | Forb | | | | | No | | Yes |
| horseweed | Conyza canadensis | Sunflower | | Forb | | | | | North America grasslands | | |
| marshelder | Iva xanthifolia | Sunflower | | Forb | | | | | No | | Yes |
| pineappleweed | Matricaria matriarioides | Sunflower | | Forb | | | | | North America | | Yes |
| salt cedar, tamarisk | Tamarix parviflora | Tamarisk | White-pale pink/ Purple | Tree | | | | | No | | Yes |
| common teasel | Dipsacus fullonum | Teasel | Brown - purple | Shrub | | | Europe | | | | |
| valerian | Valeriana sp. | Valerian | White | Herb | | | | McCall | Yes | | No |
| prostrate vervain, bigbract verbena | Verbena bracteata | Verbena | light purple | Forb | | | | | Yes | | |
| early blue violet | Viola adnuca var. unknown | Violet | Blue | Herb | | | | McCall | Yes | | No |
| pale mountain violet | Viola adunca var. glabra | Violet | Blue | Herb | | | | McCall | Yes | | No |
| Beckwith's violet | Viola beckwithii | Violet | Purple, white | Herb | | 3300' | | Midvale Hill between Mann Creek and Midvale, ID | Yes | | |
| yellow prairie violet, yellow mountain violet | Viola venosa | Violet | Yellow | Herb | | | | | Yes | | No |
| false strawberry, dwarf hesperochiron | Hesperochiron pumilus | Waterleaf | White, yellow | | | 3300', 6000' | | Gold Creek, East Fork Owyhee River, Midvale Hill between Mann Creek and Midvale, ID | Yes | | |
| dwarf waterleaf, ballhead waterleaf | Hydrophyllum capitatum | Waterleaf | Pink, purple | Herb | | 2500' | | Mann Creek, ID | Yes | | No |
| ground nama | Nama aretioides | Waterleaf | light purple | Forb | | | | | Yes | | |
| silverleaf phacelia | Phacelia hastata | Waterleaf | Green, Red | Forb | | | | | Yes | | |
| linear-leafed phacelia, threadleaf phacelia | Phacelia linearis | Waterleaf | Purple | Herb | | | | Jenkins Rd. north of Weiser ID | Yes | | No |
| yellow water lily, indian pond lily | Nuphar polysepala | Water Lily | Yellow | Herb | | | | | Yes | | No |
| eastern cottonwood, necklace poplar, great plains cottonwood | Populus deltoides | Willow | | Tree | | | | | Yes | | No |
| quaking aspen | Populus tremuloides | Willow | | Tree | | | | | Yes | | No |
| black cottonwood | Populus trichocarpa | Willow | -none- | Tree | | | | McCall | Yes | | No |
| peach-leaf willow | Salix amygdaloides | Willow | Yellow | Shrub - Tree | | | | | | | |
| coyote willow | Salix exigua | Willow | -none- | Shrub | | | | | Yes | | No |
| black willow | Salix nigra | Willow | | Tree | | | | | Yes | | No |
| MacKenzieana | Salix rigida | Willow | Green | Shrub - Tree | | | | | Yes | | |
| willow | Salix sp. | Willow | | Shrub | | | | | Yes | | No |