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Native plants · Idaho

Native plants of Lemhi County

447 plant species are recorded as native to Idaho in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Lemhi County by USDA PLANTS. 308 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 4 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Lemhi County, Idaho

Native species
447 Typical Idaho county: 302 (median of 44 counties)
Garden-ready natives
308 Typical Idaho county: 211
Share by type (all 447 native species)
Percent of the 447 native species in each growth type
Tree 8% (37)
Shrub 12% (53)
Wildflower (forb) 57% (255)
Grass or grass-like 19% (84)
Vine <1% (4)
Fern 3% (14)

Wildflowers make up the largest share of the native list (57%), followed by grasses and grass-like plants (19%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zones 5a to 6a (2023 map).

The native plant list

Cold hardiness is estimated from each plant’s PLANTS minimum temperature. How we estimate it.

Garden-ready natives 308

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of Lemhi County, Idaho
PlantType HeightLight Water useHardy to
Alberta beardtongue Penstemon albertinus Wildflower (forb) 2 ft Sun–part shade Medium Zone 10a
alkali buttercup Ranunculus cymbalaria Wildflower (forb) 1 ft Shade-tolerant High Zone 3b
alkali cordgrass Spartina gracilis Grass or grass-like 3 ft Sun Medium Zone 3b
alpine bistort Polygonum viviparum Wildflower (forb) 1 ft Sun High Zone 3b
alpine laurel Kalmia microphylla Shrub 1 ft Shade-tolerant Medium Zone 4b
alpine leafybract aster Symphyotrichum foliaceum Wildflower (forb) 2 ft Sun Medium Zone 3b
Alpine Meadow-Foxtail Alopecurus magellanicus Grass or grass-like 6 in Sun–part shade High Zone 4a
alpine mountainsorrel Oxyria digyna Wildflower (forb) 1 ft Sun–part shade Medium Zone 3a
alpine timothy Phleum alpinum Grass or grass-like 1.4 ft Sun–part shade Medium Zone 3a
American alpine speedwell Veronica wormskjoldii Wildflower (forb) 1 ft Sun–part shade High Zone 4b
American bistort Polygonum bistortoides Wildflower (forb) 1.5 ft Sun High Zone 3b
American licorice Glycyrrhiza lepidota Wildflower (forb) 4 ft Sun–part shade High Zone 3b
American red raspberry Rubus idaeus Shrub 6 ft Shade-tolerant — Zone 1a
American speedwell Veronica americana Wildflower (forb) 10 in Shade-tolerant High Zone 3b
American vetch Vicia americana Vine 1.3 ft Sun Low Zone 3b
analogue sedge Carex simulata Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
Anderson's larkspur Delphinium andersonii Wildflower (forb) 2 ft Shade-tolerant Low Zone 5b
arrowleaf balsamroot Balsamorhiza sagittata Wildflower (forb) 2 ft Sun–part shade Medium Zone 3b
arrowleaf ragwort Senecio triangularis Wildflower (forb) 4 ft Sun–part shade High Zone 4a
ballhead waterleaf Hydrophyllum capitatum Wildflower (forb) 1 ft Shade-tolerant High Zone 4b
Barclay's willow Salix barclayi Tree 15 ft Sun High Zone 3a
basalt milkvetch Astragalus filipes Wildflower (forb) 2 ft Sun Low Zone 5a
big sagebrush Artemisia tridentata Tree 4 ft Sun Medium Zone 3a
bitter cherry Prunus emarginata Tree 80 ft Sun Medium Zone 5a
black hawthorn Crataegus douglasii Tree 15 ft Sun–part shade High Zone 2b
black sagebrush Artemisia nova Shrub 2 ft Sun Low Zone 5a
blanketflower Gaillardia aristata Wildflower (forb) 2 ft Sun Medium Zone 4a
blue grama Bouteloua gracilis Grass or grass-like 1 ft Sun Medium Zone 3a
Blue Mountain buckwheat Eriogonum strictum Wildflower (forb) 2.2 ft Sun Low Zone 5a
blue spruce Picea pungens Tree 100 ft Sun–part shade Medium Zone 3b
blue wildrye Elymus glaucus Grass or grass-like 3.3 ft Shade-tolerant Low Zone 3b
bluebunch wheatgrass Pseudoroegneria spicata Grass or grass-like 3 ft Sun Low Zone 3b
bluejoint Calamagrostis canadensis Grass or grass-like 4.9 ft Sun Medium Zone 4a
bluntseed sweetroot Osmorhiza depauperata Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4a
bog blueberry Vaccinium uliginosum Shrub 2 ft Sun–part shade Medium Zone 3b
Booth's willow Salix boothii Shrub 24 ft Shade-tolerant High Zone 8b
boxelder Acer negundo Tree 60 ft Shade-tolerant Medium Zone 2b
Brewer's bittercress Cardamine breweri Wildflower (forb) 1.8 ft Shade-tolerant Medium Zone 5b
broadleaf arnica Arnica latifolia Wildflower (forb) 2 ft Sun–part shade High Zone 4a
broom sedge Carex scoparia Grass or grass-like 2.5 ft Shade-tolerant High Zone 3b
broom snakeweed Gutierrezia sarothrae Shrub 1.5 ft Sun Medium Zone 3b
bush penstemon Penstemon fruticosus Shrub 2 ft Sun Medium Zone 6a
bushy bird's beak Cordylanthus ramosus Wildflower (forb) 1 ft Sun–part shade Medium Zone 12b
California amaranth Amaranthus californicus Wildflower (forb) 1 ft Sun Medium Zone 7a
Canada goldenrod Solidago canadensis Wildflower (forb) 3.5 ft Sun Medium Zone 3a
Canadian horseweed Conyza canadensis Wildflower (forb) 5 ft Sun Medium Zone 12b
Canadian milkvetch Astragalus canadensis Wildflower (forb) 6 in Sun Medium Zone 3b
Chamisso arnica Arnica chamissonis Wildflower (forb) 2.5 ft Sun–part shade High Zone 4a
chokecherry Prunus virginiana Tree 25 ft Sun Medium Zone 3a
clasping arnica Arnica amplexicaulis Wildflower (forb) 2.5 ft Shade-tolerant High Zone 5a
clustered field sedge Carex praegracilis Grass or grass-like 2 ft Sun–part shade Medium Zone 3b
Colorado rush Juncus confusus Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
Columbia needlegrass Achnatherum nelsonii Grass or grass-like 3 ft Sun Low Zone 4b
Columbian monkshood Aconitum columbianum Wildflower (forb) 5 ft Sun–part shade High Zone 4b
common beargrass Xerophyllum tenax Wildflower (forb) 5 ft Sun–part shade Low Zone 8a
common juniper Juniperus communis Tree 10 ft Sun Low Zone 3a
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
coon's tail Ceratophyllum demersum Wildflower (forb) — Sun–part shade High Zone 3b
cous biscuitroot Lomatium cous Wildflower (forb) 10 in Sun Low Zone 4b
creeping barberry Mahonia repens Shrub 2 ft Shade-tolerant Medium Zone 5a
curl-leaf mountain mahogany Cercocarpus ledifolius Tree 20 ft Sun–part shade Low Zone 2b
curvepod yellowcress Rorippa curvisiliqua Wildflower (forb) 1 ft Shade-tolerant High Zone 12b
cutleaf daisy Erigeron compositus Wildflower (forb) 1 ft Sun Low Zone 4a
darkthroat shootingstar Dodecatheon pulchellum Wildflower (forb) 2 ft Sun–part shade Medium Zone 4a
desert sweet Chamaebatiaria millefolium Shrub 6 ft Sun Low Zone 5a
diamondleaf willow Salix planifolia Tree 8 ft Sun Medium Zone 3b
Douglas-fir Pseudotsuga menziesii Tree 200 ft Sun–part shade Medium Zone 4a
Douglas' dustymaiden Chaenactis douglasii Wildflower (forb) 1.6 ft Sun–part shade Low Zone 3b
Douglas' sedge Carex douglasii Grass or grass-like 1.5 ft Sun Medium Zone 4a
drooping woodreed Cinna latifolia Grass or grass-like 4.5 ft Sun–part shade High Zone 3b
Drummond's rockcress Arabis drummondii Wildflower (forb) 2 ft Sun–part shade Medium Zone 3b
Drummond's rush Juncus drummondii Grass or grass-like 1.5 ft Sun–part shade Medium Zone 3b
Drummond's willow Salix drummondiana Shrub 12 ft Sun–part shade High Zone 4b
Eaton's fleabane Erigeron eatonii Wildflower (forb) 10 in Sun Low Zone 5b
elephanthead lousewort Pedicularis groenlandica Wildflower (forb) 2.5 ft Sun–part shade High Zone 4a
Engelmann spruce Picea engelmannii Tree 120 ft Shade-tolerant Medium Zone 2a
Eschscholtz's buttercup Ranunculus eschscholtzii Wildflower (forb) 1 ft Sun Medium Zone 4a
false indigo bush Amorpha fruticosa Shrub 15 ft Sun Low Zone 3b
fernleaf biscuitroot Lomatium dissectum Wildflower (forb) 15 ft Sun–part shade Low Zone 8a
fiddleleaf hawksbeard Crepis runcinata Wildflower (forb) 1 ft Sun Medium Zone 3b
field horsetail Equisetum arvense Fern 11 in Sun–part shade High Zone 3a
fineleaf pondweed Stuckenia filiformis Wildflower (forb) — Sun High Zone 3b
fireweed Chamerion angustifolium Wildflower (forb) 5.5 ft Sun–part shade High Zone 3b
flat-top pussytoes Antennaria corymbosa Wildflower (forb) 1 ft Shade-tolerant High Zone 5b
foothill arnica Arnica fulgens Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4b
foothill deathcamas Zigadenus paniculatus Wildflower (forb) 1.6 ft Sun Medium Zone 4a
fowl mannagrass Glyceria striata Grass or grass-like 5.7 ft Shade-tolerant Medium Zone 3b
freckled milkvetch Astragalus lentiginosus Shrub 1.4 ft Sun Low Zone 4b
fringed brome Bromus ciliatus Grass or grass-like 4 ft Shade-tolerant Medium Zone 7a
fringed grass of Parnassus Parnassia fimbriata Wildflower (forb) 1.2 ft Sun–part shade High Zone 4b
Geyer willow Salix geyeriana Tree 15 ft Shade-tolerant High Zone 3b
Geyer's sedge Carex geyeri Grass or grass-like 1.5 ft Sun–part shade Low Zone 4b
giant goldenrod Solidago gigantea Wildflower (forb) 8.2 ft Sun–part shade Medium Zone 4a
giant mountain aster Canadanthus modestus Wildflower (forb) 3 ft Sun Medium Zone 3b
glaucous bluegrass Poa glauca Grass or grass-like 2 ft Sun — Zone 3a
glaucus willowherb Epilobium glaberrimum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 6b
golden sedge Carex aurea Grass or grass-like 1.2 ft Sun–part shade High Zone 4a
gooseberry currant Ribes montigenum Shrub 1 ft Sun–part shade Medium Zone 7a
granite prickly phlox Linanthus pungens Wildflower (forb) 2 ft Shade-tolerant Low Zone 4a
gray alder Alnus incana Tree 25 ft Sun–part shade High Zone 4a
greasewood Sarcobatus vermiculatus Shrub 10 ft Sun Low Zone 3b
green alder Alnus viridis Tree 10 ft Sun–part shade High Zone 1a
green molly Bassia americana Shrub 2 ft Sun Low Zone 4a
Greene's mountain ash Sorbus scopulina Tree 12 ft Sun–part shade Medium Zone 7a
grouse whortleberry Vaccinium scoparium Shrub 2 ft Shade-tolerant Medium Zone 6a
hair-like sedge Carex capillaris Grass or grass-like 1.7 ft Shade-tolerant Medium Zone 3a
hairy arnica Arnica mollis Wildflower (forb) 2 ft Sun–part shade High Zone 4a
harsh Indian paintbrush Castilleja hispida Wildflower (forb) 1.5 ft Sun Low Zone 5a
heartleaf arnica Arnica cordifolia Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4b
high northern buttercup Ranunculus hyperboreus Wildflower (forb) 1 ft Sun — Zone 1a
hooded lady's tresses Spiranthes romanzoffiana Wildflower (forb) 2.5 ft Sun–part shade High Zone 3b
Idaho blue-eyed grass Sisyrinchium idahoense Wildflower (forb) 1.7 ft Shade-tolerant High Zone 3b
Idaho fescue Festuca idahoensis Grass or grass-like 2 ft Sun–part shade Medium Zone 3b
Indian ricegrass Achnatherum hymenoides Grass or grass-like 2 ft Sun Low Zone 3a
Indianhemp Apocynum cannabinum Wildflower (forb) 3.3 ft Sun–part shade High Zone 3a
King's sandwort Arenaria kingii Wildflower (forb) 8 in Sun Low Zone 4b
kinnikinnick Arctostaphylos uva-ursi Shrub 6 in Sun–part shade Low Zone 4a
knotted rush Juncus nodosus Grass or grass-like 2 ft Sun Medium Zone 4b
lambstongue ragwort Senecio integerrimus Wildflower (forb) 1.1 ft Sun–part shade Medium Zone 3b
largeflower triteleia Triteleia grandiflora Wildflower (forb) 2 ft Sun–part shade Medium Zone 4a
largeleaf avens Geum macrophyllum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4a
Leiberg's bluegrass Poa leibergii Grass or grass-like 1.5 ft Sun Medium Zone 5a
Lemmon's willow Salix lemmonii Shrub 14 ft Sun–part shade High Zone 4b
Letterman's needlegrass Achnatherum lettermanii Grass or grass-like 2 ft Sun Low Zone 4b
Lewis flax Linum lewisii Wildflower (forb) 2.5 ft Sun Medium Zone 3b
Lewis' mock orange Philadelphus lewisii Shrub 12 ft Sun Low Zone 8a
limber pine Pinus flexilis Tree 66 ft Sun Low Zone 3a
little green sedge Carex viridula Grass or grass-like 1.5 ft Sun High Zone 3b
little sagebrush Artemisia arbuscula Shrub 2 ft Sun Low Zone 3a
littleleaf pussytoes Antennaria microphylla Wildflower (forb) 1 ft Sun Low Zone 3b
lodgepole pine Pinus contorta Tree 99 ft Sun Medium Zone 1a
longbeak buttercup Ranunculus longirostris Wildflower (forb) 1 ft Shade-tolerant High Zone 4b
longleaf phlox Phlox longifolia Wildflower (forb) 1.2 ft Sun–part shade Low Zone 6a
longleaf starwort Stellaria longifolia Wildflower (forb) 1.5 ft Shade-tolerant High Zone 3b
longstalk clover Trifolium longipes Wildflower (forb) 6 in Sun–part shade Medium Zone 8a
longstalk starwort Stellaria longipes Wildflower (forb) 11 in Sun–part shade High Zone 4a
longstyle rush Juncus longistylis Grass or grass-like 1.8 ft Sun–part shade High Zone 3b
low pussytoes Antennaria dimorpha Wildflower (forb) 4 in Sun–part shade Low Zone 3b
Lyall's angelica Angelica arguta Wildflower (forb) 6 ft Sun–part shade High Zone 5b
MacKenzie's willow Salix prolixa Tree 45 ft Sun Low Zone 2a
maiden blue eyed Mary Collinsia parviflora Wildflower (forb) 1 ft Shade-tolerant Medium Zone 4a
mallow ninebark Physocarpus malvaceus Shrub 15 ft Sun Low Zone 4a
marsh bluegrass Poa leptocoma Grass or grass-like 2 ft Shade-tolerant High Zone 4b
marsh grass of Parnassus Parnassia palustris Wildflower (forb) 2.2 ft Sun High Zone 3b
mat muhly Muhlenbergia richardsonis Grass or grass-like 6 in Sun High Zone 4b
meadow barley Hordeum brachyantherum Grass or grass-like 2 ft Sun Medium Zone 3a
Mertens' rush Juncus mertensianus Grass or grass-like 11 in Sun–part shade High Zone 4a
Mexican muhly Muhlenbergia mexicana Grass or grass-like 3 ft Sun–part shade Medium Zone 4a
Missouri goldenrod Solidago missouriensis Wildflower (forb) 3 ft Sun–part shade Low Zone 3b
Modoc hawksbeard Crepis modocensis Wildflower (forb) 1.4 ft Sun Low Zone 4b
mountain sedge Carex scopulorum Grass or grass-like 1.3 ft Sun–part shade High Zone 3b
mule-ears Wyethia amplexicaulis Wildflower (forb) 2.5 ft Sun Medium Zone 3b
Munro's globemallow Sphaeralcea munroana Wildflower (forb) 2.5 ft Sun Low Zone 4b
muttongrass Poa fendleriana Grass or grass-like 2 ft Sun Low Zone 3b
narrowleaf cottonwood Populus angustifolia Tree 60 ft Sun High Zone 4b
narrowleaf willow Salix exigua Tree 10 ft Sun–part shade High Zone 3b
Nebraska sedge Carex nebrascensis Grass or grass-like 3 ft Sun High Zone 3b
nineleaf biscuitroot Lomatium triternatum Wildflower (forb) 2.2 ft Sun–part shade Medium Zone 4a
nodding beggartick Bidens cernua Wildflower (forb) 3.2 ft Sun–part shade High Zone 12a
nodding microseris Microseris nutans Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4b
northern bedstraw Galium boreale Wildflower (forb) 3 ft Sun–part shade Medium Zone 4a
northern black currant Ribes hudsonianum Shrub 5 ft Sun–part shade High Zone 4a
northern singlespike sedge Carex scirpoidea Grass or grass-like 1.5 ft Shade-tolerant Medium Zone 3b
northwestern Indian paintbrush Castilleja angustifolia Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4a
Nuttall's alkaligrass Puccinellia nuttalliana Grass or grass-like 10 in Sun Medium Zone 3b
Nuttall's povertyweed Monolepis nuttalliana Wildflower (forb) 10 in Sun Medium Zone 12a
Nuttall's sunflower Helianthus nuttallii Wildflower (forb) 10 ft Sun Medium Zone 3b
old man's whiskers Geum triflorum Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 3b
oneflower helianthella Helianthella uniflora Wildflower (forb) 2 ft Sun–part shade Low Zone 5a
oniongrass Melica bulbosa Grass or grass-like 1.8 ft Sun–part shade Low Zone 3a
orange agoseris Agoseris aurantiaca Wildflower (forb) 1 ft Sun Medium Zone 4a
Oregon checkerbloom Sidalcea oregana Wildflower (forb) 4.5 ft Shade-tolerant High Zone 3b
Pacific anemone Anemone multifida Wildflower (forb) 2 ft Shade-tolerant Medium Zone 5a
pale agoseris Agoseris glauca Shrub 1 ft Sun Medium Zone 4a
panicled bulrush Scirpus microcarpus Grass or grass-like 5.5 ft Sun Medium Zone 3b
Parry's rush Juncus parryi Grass or grass-like 1 ft Sun–part shade Low Zone 4a
pearly pussytoes Antennaria anaphaloides Wildflower (forb) 2.5 ft Sun–part shade Medium Zone 4a
Pennsylvania bittercress Cardamine pensylvanica Wildflower (forb) 1.5 ft Shade-tolerant Medium Zone 4a
pinegrass Calamagrostis rubescens Grass or grass-like 3 ft Shade-tolerant Medium Zone 4b
plains pricklypear Opuntia polyacantha Shrub 2 ft Sun Low Zone 4b
plantainleaf buttercup Ranunculus alismifolius Wildflower (forb) 2 ft Sun–part shade High Zone 4a
ponderosa pine Pinus ponderosa Tree 223 ft Sun Medium Zone 3b
prairie sagewort Artemisia frigida Shrub 2 ft Sun–part shade Low Zone 3a
prickly currant Ribes lacustre Shrub 3 ft Shade-tolerant — Zone 1a
prickly rose Rosa acicularis Shrub 4 ft Shade-tolerant High Zone 3b
primrose monkeyflower Mimulus primuloides Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4a
purple milkvetch Astragalus agrestis Wildflower (forb) 1 ft Sun Low Zone 4a
purple oniongrass Melica spectabilis Grass or grass-like 2.5 ft Sun–part shade Low Zone 4a
quaking aspen Populus tremuloides Tree 65 ft Sun High Zone 1a
Rainier pleated gentian Gentiana calycosa Wildflower (forb) 7 in Shade-tolerant Medium Zone 8a
rayless arnica Arnica ×diversifolia Wildflower (forb) 1.3 ft Sun–part shade High Zone 5a
red elderberry Sambucus racemosa Tree 18 ft Sun–part shade High Zone 4a
redosier dogwood Cornus sericea Tree 12 ft Sun High Zone 3b
Rocky Mountain beeplant Cleome serrulata Wildflower (forb) 3 ft Sun–part shade Medium Zone 12b
Rocky Mountain goldenrod Solidago multiradiata Wildflower (forb) 1 ft Sun — Zone 1a
Rocky Mountain iris Iris missouriensis Wildflower (forb) 1 ft Sun–part shade High Zone 4b
Rocky Mountain juniper Juniperus scopulorum Tree 50 ft Sun Low Zone 3b
Rocky Mountain maple Acer glabrum Tree 30 ft Sun–part shade Low Zone 3a
Ross' avens Geum rossii Wildflower (forb) 5 in Sun–part shade Low Zone 10a
Ross' sedge Carex rossii Grass or grass-like 1 ft Sun–part shade Medium Zone 4a
rough bentgrass Agrostis scabra Grass or grass-like 2.5 ft Sun Medium Zone 3b
roundleaf alumroot Heuchera cylindrica Wildflower (forb) 6 ft Sun–part shade Low Zone 6a
rubber rabbitbrush Ericameria nauseosa Shrub 4 ft Sun Medium Zone 3b
russet buffaloberry Shepherdia canadensis Shrub 6 ft Sun–part shade Medium Zone 1a
Rydberg's penstemon Penstemon rydbergii Wildflower (forb) 3 ft Sun Low Zone 3b
sagebrush buttercup Ranunculus glaberrimus Wildflower (forb) 6 in Sun High Zone 3a
sageleaf willow Salix candida Shrub 6 ft Sun–part shade High Zone 4a
saltgrass Distichlis spicata Grass or grass-like 1.1 ft Sun Medium Zone 3b
sand dropseed Sporobolus cryptandrus Grass or grass-like 3 ft Sun Low Zone 3b
Sandberg bluegrass Poa secunda Grass or grass-like 1.4 ft Sun–part shade Low Zone 3b
sanddune wallflower Erysimum capitatum Wildflower (forb) 2.5 ft Sun Medium Zone 4b
Saskatoon serviceberry Amelanchier alnifolia Tree 15 ft Sun–part shade Medium Zone 1a
scabland penstemon Penstemon deustus Wildflower (forb) 2 ft Sun Low Zone 4a
scarlet gilia Ipomopsis aggregata Wildflower (forb) 3 ft Sun Low Zone 5b
Scouler's willow Salix scouleriana Tree 50 ft Sun–part shade High Zone 6a
sea milkwort Glaux maritima Wildflower (forb) 11 in Sun High Zone 4a
seep monkeyflower Mimulus guttatus Wildflower (forb) 2.5 ft Shade-tolerant High Zone 3b
shadscale saltbush Atriplex confertifolia Shrub 3 ft Sun Medium Zone 3b
sharpleaf penstemon Penstemon acuminatus Wildflower (forb) 2 ft Sun Low Zone 4a
shortawn foxtail Alopecurus aequalis Grass or grass-like 2.5 ft Sun–part shade High Zone 3b
showy milkweed Asclepias speciosa Wildflower (forb) 6 ft Sun Medium Zone 4a
shrubby cinquefoil Dasiphora fruticosa Shrub 2.5 ft Sun–part shade Low Zone 4b
sickle saltbush Atriplex falcata Shrub 2 ft Sun–part shade Low Zone 3b
silky lupine Lupinus sericeus Wildflower (forb) 6 ft Sun Low Zone 4b
silverleaf phacelia Phacelia hastata Wildflower (forb) 2 ft Sun–part shade Medium Zone 3b
silverweed cinquefoil Argentina anserina Wildflower (forb) 6 in Shade-tolerant High Zone 5a
silvery lupine Lupinus argenteus Wildflower (forb) 1.5 ft Sun Low Zone 3a
silvery primrose Primula incana Wildflower (forb) 1.2 ft Sun–part shade High Zone 4a
slender cinquefoil Potentilla gracilis Wildflower (forb) 2.4 ft Sun Low Zone 3a
slender hairgrass Deschampsia elongata Grass or grass-like 3 ft Sun Low Zone 3b
slender wheatgrass Elymus trachycaulus Grass or grass-like 3 ft Sun Medium Zone 3b
slenderbeak sedge Carex athrostachya Grass or grass-like 2 ft Sun–part shade High Zone 4a
slimstem reedgrass Calamagrostis stricta Grass or grass-like 3 ft Sun–part shade High Zone 3a
small enchanter's nightshade Circaea alpina Wildflower (forb) 11 in Shade-tolerant Medium Zone 3b
smallflowered woodrush Luzula parviflora Grass or grass-like 2 ft Shade-tolerant High Zone 4a
smallwing sedge Carex microptera Grass or grass-like 2 ft Sun High Zone 4a
smooth blue aster Symphyotrichum laeve Wildflower (forb) 4 ft Sun Medium Zone 3a
smooth horsetail Equisetum laevigatum Fern 5 ft Sun Low Zone 3b
snowbrush ceanothus Ceanothus velutinus Tree 10 ft Sun Medium Zone 5a
softleaf sedge Carex disperma Grass or grass-like 2 ft Sun–part shade High Zone 3b
spearleaf arnica Arnica longifolia Wildflower (forb) 2 ft Shade-tolerant High Zone 4a
spike bentgrass Agrostis exarata Grass or grass-like 3 ft Sun Medium Zone 3b
spike trisetum Trisetum spicatum Grass or grass-like 1.9 ft Sun–part shade Medium Zone 3b
spiked woodrush Luzula spicata Grass or grass-like 1.3 ft Shade-tolerant High Zone 4a
spineless horsebrush Tetradymia canescens Shrub 4 ft Sun Low Zone 9a
spiny hopsage Grayia spinosa Shrub 3 ft Sun Low Zone 4a
spreadingpod rockcress Arabis ×divaricarpa Wildflower (forb) 3 ft Shade-tolerant Low Zone 4b
squirreltail Elymus elymoides Grass or grass-like 1.5 ft Sun Low Zone 3a
sticky cinquefoil Potentilla glandulosa Wildflower (forb) 1.5 ft Sun–part shade Low Zone 4a
sticky currant Ribes viscosissimum Shrub 3.5 ft Sun — Zone 3b
sticky purple geranium Geranium viscosissimum Wildflower (forb) 3 ft Shade-tolerant Low Zone 6a
stiff clubmoss Lycopodium annotinum Fern 1 ft Shade-tolerant High Zone 3a
subalpine fir Abies lasiocarpa Tree 90 ft Shade-tolerant Medium Zone 2a
subalpine larch Larix lyallii Tree 40 ft Sun Low Zone 1b
Suksdorf's monkeyflower Mimulus suksdorfii Wildflower (forb) 7 in Shade-tolerant Medium Zone 12b
sulphur-flower buckwheat Eriogonum umbellatum Shrub 1 ft Sun Low Zone 8a
swordleaf rush Juncus ensifolius Grass or grass-like 2 ft Sun–part shade High Zone 3b
tailcup lupine Lupinus caudatus Wildflower (forb) 5 ft Sun Low Zone 4b
tall fringed bluebells Mertensia ciliata Wildflower (forb) 2 ft Sun–part shade High Zone 5a
tapertip hawksbeard Crepis acuminata Wildflower (forb) 3 ft Sun–part shade Low Zone 3b
tapertip onion Allium acuminatum Wildflower (forb) 1 ft Sun Low Zone 4b
textile onion Allium textile Wildflower (forb) 1 ft Sun–part shade Medium Zone 3b
thickspike wheatgrass Elymus lanceolatus Grass or grass-like 2.3 ft Sun Low Zone 3b
thickstem aster Eurybia integrifolia Wildflower (forb) 3 ft Sun Low Zone 5a
thimbleberry Rubus parviflorus Shrub 4 ft Sun–part shade High Zone 4b
thinleaf huckleberry Vaccinium membranaceum Shrub 4.5 ft Sun–part shade Low Zone 3b
threadleaf sedge Carex filifolia Grass or grass-like 1.2 ft Sun Low Zone 3b
threepetal bedstraw Galium trifidum Vine 10 in Sun–part shade High Zone 3b
threetip sagebrush Artemisia tripartita Shrub 4 ft Sun Low Zone 3a
timber oatgrass Danthonia intermedia Grass or grass-like 1.5 ft Sun–part shade Low Zone 4a
tinker's penny Hypericum anagalloides Wildflower (forb) 10 in Sun–part shade High Zone 12a
tufted evening primrose Oenothera caespitosa Wildflower (forb) 6 in Sun Low Zone 6a
tufted hairgrass Deschampsia cespitosa Grass or grass-like 3.4 ft Sun Low Zone 3b
twinberry honeysuckle Lonicera involucrata Shrub 10 ft Shade-tolerant High Zone 3a
undergreen willow Salix commutata Shrub 3 ft — — Zone 3b
Utah honeysuckle Lonicera utahensis Shrub 5 ft Shade-tolerant High Zone 5a
Utah serviceberry Amelanchier utahensis Tree 15 ft Sun–part shade Medium Zone 4b
Utah sweetvetch Hedysarum boreale Wildflower (forb) 2 ft Sun Medium Zone 3b
vernal water-starwort Callitriche palustris Wildflower (forb) 10 in Sun Medium Zone 4a
Wasatch beardtongue Penstemon cyananthus Wildflower (forb) 2.5 ft Sun Medium Zone 5a
water birch Betula occidentalis Tree 25 ft Sun–part shade High Zone 1a
water sedge Carex aquatilis Grass or grass-like 2.9 ft Sun High Zone 3b
wavyleaf Indian paintbrush Castilleja applegatei Wildflower (forb) 1.5 ft Sun Low Zone 4b
wax currant Ribes cereum Shrub 3 ft Sun Low Zone 5a
western Labrador tea Ledum glandulosum Shrub 4.5 ft Shade-tolerant Medium Zone 4b
western pearly everlasting Anaphalis margaritacea Wildflower (forb) 3 ft Sun–part shade Medium Zone 3a
western polemonium Polemonium occidentale Wildflower (forb) 3 ft Shade-tolerant High Zone 3a
western snowberry Symphoricarpos occidentalis Shrub 3 ft Sun–part shade Low Zone 3b
western stoneseed Lithospermum ruderale Wildflower (forb) 1.5 ft Sun Low Zone 4b
western sweetroot Osmorhiza occidentalis Wildflower (forb) 4 ft Shade-tolerant Medium Zone 3b
western valerian Valeriana occidentalis Wildflower (forb) 3 ft Sun High Zone 4b
western water hemlock Cicuta douglasii Wildflower (forb) 6 ft Sun High Zone 4b
wheat sedge Carex atherodes Grass or grass-like 5 ft Sun High Zone 3b
white hawkweed Hieracium albiflorum Wildflower (forb) 3 ft Sun–part shade Low Zone 4a
white marsh marigold Caltha leptosepala Wildflower (forb) 1 ft Sun High Zone 4a
white panicle aster Symphyotrichum lanceolatum Wildflower (forb) 6 ft Sun–part shade High Zone 3b
white sagebrush Artemisia ludoviciana Wildflower (forb) 3 ft Sun Low Zone 4a
whitebark pine Pinus albicaulis Tree 65 ft Sun–part shade Medium Zone 1b
whitestem gooseberry Ribes inerme Shrub 8 ft Shade-tolerant Medium Zone 4b
Wilcox's penstemon Penstemon wilcoxii Wildflower (forb) 3 ft Sun Low Zone 4a
woodrush sedge Carex luzulina Grass or grass-like 2 ft Sun High Zone 4a
Woods' rose Rosa woodsii Shrub 3 ft Sun–part shade Medium Zone 3a
woolly groundsel Packera cana Wildflower (forb) 1.5 ft Sun Low Zone 3a
woollypod milkvetch Astragalus purshii Wildflower (forb) 7 in Sun Low Zone 4a
yellow fritillary Fritillaria pudica Wildflower (forb) 1 ft Sun–part shade Medium Zone 12a
yellow owl's-clover Orthocarpus luteus Wildflower (forb) 1.5 ft Sun Low Zone 12b
yellow rabbitbrush Chrysothamnus viscidiflorus Shrub 3 ft Sun Low Zone 5a
yellow willow Salix lutea Tree 16 ft Sun–part shade High Zone 3a

Other native species recorded here 139

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

  • alpine bluegrass Poa alpina
  • alpine fescue Festuca brachyphylla
  • alpine milkvetch Astragalus alpinus
  • American dragonhead Dracocephalum parviflorum
  • American mannagrass Glyceria grandis
  • American rockbrake Cryptogramma acrostichoides
  • American yellowrocket Barbarea orthoceras
  • aridland goosefoot Chenopodium desiccatum
  • autumn dwarf gentian Gentianella amarella
  • ballhead ipomopsis Ipomopsis congesta
  • bastard toadflax Comandra umbellata
  • beautiful sandwort Minuartia rubella
  • Bebb willow Salix bebbiana
  • biannual lettuce Lactuca ludoviciana
  • bitter fleabane Erigeron acris
  • bluntleaf yellowcress Rorippa curvipes
  • brittle bladderfern Cystopteris fragilis
  • Canadian gooseberry Ribes oxyacanthoides
  • carelessweed Cyclachaena xanthiifolia
  • clustered broomrape Orobanche fasciculata
  • common bladderwort Utricularia macrorhiza
  • Crawford's sedge Carex crawfordii
  • curlycup gumweed Grindelia squarrosa
  • Douglas' knotweed Polygonum douglasii
  • Drummond's campion Silene drummondii
  • Dudley's rush Juncus dudleyi
  • elkweed Frasera speciosa
  • Equisetum ×ferrissii Equisetum ×ferrissii
  • fairy slipper Calypso bulbosa
  • false mermaidweed Floerkea proserpinacoides
  • falsegold groundsel Packera pseudaurea
  • feathery false lily of the valley Maianthemum racemosum
  • fineleaf hymenopappus Hymenopappus filifolius
  • flatspine stickseed Lappula occidentalis
  • foxtail barley Hordeum jubatum
  • fragrant bedstraw Galium triflorum
  • fringed willowherb Epilobium ciliatum
  • giant red Indian paintbrush Castilleja miniata
  • Gmelin's buttercup Ranunculus gmelinii
  • green false hellebore Veratrum viride
  • hairy evening primrose Oenothera villosa
  • heartleaf twayblade Listera cordata
  • hoary tansyaster Machaeranthera canescens
  • hookedspur violet Viola adunca
  • horned pondweed Zannichellia palustris
  • Hornemann's willowherb Epilobium hornemannii
  • Howell's pussytoes Antennaria howellii
  • largeleaf sandwort Moehringia macrophylla
  • Laxmann's milkvetch Astragalus laxmannii
  • leathery knotweed Polygonum achoreum
  • lemon scurfpea Psoralidium lanceolatum
  • lesser spikemoss Selaginella densa
  • lesser wirelettuce Stephanomeria minor
  • liverleaf wintergreen Pyrola asarifolia
  • male fern Dryopteris filix-mas
  • manyflower stickseed Hackelia floribunda
  • manyflowered monkeyflower Mimulus floribundus
  • marsh skullcap Scutellaria galericulata
  • marsh violet Viola palustris
  • meadow deathcamas Zigadenus venenosus
  • meadow horsetail Equisetum pratense
  • meadow sedge Carex praticola
  • Menzies' campion Silene menziesii
  • milkflower willowherb Epilobium lactiflorum
  • Mingan moonwort Botrychium minganense
  • Modoc yellowcress Rorippa tenerrima
  • moss campion Silene acaulis
  • mountain deathcamas Zigadenus elegans
  • mountain tansymustard Descurainia incana
  • muskflower Mimulus moschatus
  • narrowleaf goosefoot Chenopodium leptophyllum
  • nodding onion Allium cernuum
  • northern bog violet Viola nephrophylla
  • northern green orchid Platanthera aquilonis
  • northern hollyfern Polystichum lonchitis
  • oneflowered broomrape Orobanche uniflora
  • Oregon cliff fern Woodsia oregana
  • pale false mannagrass Torreyochloa pallida
  • Pennsylvania cinquefoil Potentilla pensylvanica
  • Pennsylvania pellitory Parietaria pensylvanica
  • pimpernel willowherb Epilobium anagallidifolium
  • pinesap Monotropa hypopitys
  • pinyon goosefoot Chenopodium atrovirens
  • pleated gentian Gentiana affinis
  • prairie plantain Plantago elongata
  • pullup muhly Muhlenbergia filiformis
  • purple reedgrass Calamagrostis purpurascens
  • Pursh seepweed Suaeda calceoliformis
  • pygmyflower rockjasmine Androsace septentrionalis
  • rayless alkali aster Symphyotrichum ciliatum
  • redwhisker clammyweed Polanisia dodecandra
  • resin birch Betula glandulosa
  • Rocky Mountain fescue Festuca saximontana
  • Rocky Mountain rush Juncus saximontanus
  • Rocky Mountain woodsia Woodsia scopulina
  • rosy pussytoes Antennaria rosea
  • rusty lupine Lupinus pusillus
  • scentbottle Platanthera dilatata
  • Scouler's popcornflower Plagiobothrys scouleri
  • scrambled eggs Corydalis aurea
  • shaggy fleabane Erigeron pumilus
  • sheathed pondweed Stuckenia vaginata
  • shortray fleabane Erigeron lonchophyllus
  • shy wallflower Erysimum inconspicuum
  • sixweeks fescue Vulpia octoflora
  • slender bog orchid Platanthera stricta
  • slender lipfern Cheilanthes feei
  • small-leaf pussytoes Antennaria parvifolia
  • spearleaf stonecrop Sedum lanceolatum
  • spiny milkvetch Astragalus kentrophyta
  • spiny phlox Phlox hoodii
  • spotted fritillary Fritillaria atropurpurea
  • spreading dogbane Apocynum androsaemifolium
  • spreading fleabane Erigeron divergens
  • starry false lily of the valley Maianthemum stellatum
  • stream orchid Epipactis gigantea
  • summer coralroot Corallorhiza maculata
  • swamp verbena Verbena hastata
  • sweetcicely Osmorhiza berteroi
  • tall annual willowherb Epilobium brachycarpum
  • tarragon Artemisia dracunculus
  • tiny trumpet Collomia linearis
  • tobacco root Valeriana edulis
  • tower rockcress Arabis glabra
  • twinflower Linnaea borealis
  • Virginia pepperweed Lepidium virginicum
  • Virginia strawberry Fragaria virginiana
  • water whorlgrass Catabrosa aquatica
  • western poison ivy Toxicodendron rydbergii
  • western rattlesnake plantain Goodyera oblongifolia
  • western tansymustard Descurainia pinnata
  • white heath aster Symphyotrichum ericoides
  • white violet Viola renifolia
  • whitestem blazingstar Mentzelia albicaulis
  • wood bluegrass Poa nemoralis
  • woodland pinedrops Pterospora andromedea
  • woodland strawberry Fragaria vesca
  • woolly sedge Carex pellita
  • yellow coralroot Corallorhiza trifida
Also listed as native and introduced here 4

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

  • biennial wormwoodArtemisia biennis
  • claspleaf twistedstalkStreptopus amplexifolius
  • common pepperweedLepidium densiflorum
  • Kentucky bluegrassPoa pratensis

Compared with Idaho

The typical county is the median of the 44 Idaho counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, Lemhi County and Idaho
MeasureLemhi CountyTypical countyStatewide
Native species 447 302 975
Garden-ready natives 308 211 591
Tree 37 — 65
Shrub 53 — 97
Wildflower (forb) 255 — 552
Grass or grass-like 84 — 206
Vine 4 — 14
Fern 14 — 41

Neighboring counties

Counties that share a ZIP code with Lemhi County.

Look up another ZIP

Matches your ZIP to the county it mostly lies in, then lists the plants recorded as native to your state (Kew’s World Checklist and USDA PLANTS) and recorded in that county by USDA PLANTS.

Source & data date

Source
USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation
USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date
Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones
USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope
Lemhi County (county FIPS 16059), Idaho. 447 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method
A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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