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Native plants · Idaho

Native plants of Elmore County

419 plant species are recorded as native to Idaho in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Elmore County by USDA PLANTS. 300 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

Elmore County, Idaho

Native species
419 Typical Idaho county: 302 (median of 44 counties)
Garden-ready natives
300 Typical Idaho county: 211
Share by type (all 419 native species)
Percent of the 419 native species in each growth type
Tree 9% (37)
Shrub 11% (48)
Wildflower (forb) 57% (240)
Grass or grass-like 21% (86)
Vine <1% (4)
Fern <1% (4)

Wildflowers make up the largest share of the native list (57%), followed by grasses and grass-like plants (21%).

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 7a (2023 map).

The native plant list

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

Garden-ready natives 300

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

Garden-ready native plants of Elmore County, Idaho
PlantType HeightLight Water useHardy to
Alaska oniongrass Melica subulata Grass or grass-like 3.3 ft Shade-tolerant Medium Zone 4a
alderleaf buckthorn Rhamnus alnifolia Shrub 3 ft Shade-tolerant High Zone 4a
alkali buttercup Ranunculus cymbalaria Wildflower (forb) 1 ft Shade-tolerant High Zone 3b
alpine leafybract aster Symphyotrichum foliaceum Wildflower (forb) 2 ft Sun Medium Zone 3b
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
annual hairgrass Deschampsia danthonioides Grass or grass-like 1.5 ft Sun–part shade Medium Zone 12b
antelope bitterbrush Purshia tridentata Shrub 6 ft Sun–part shade Low Zone 3b
arctic pearlwort Sagina saginoides Wildflower (forb) 4 in Sun–part shade High Zone 4a
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
awlfruit sedge Carex stipata Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
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
basin wildrye Leymus cinereus Grass or grass-like 5 ft Sun High Zone 3a
beardless wildrye Leymus triticoides Grass or grass-like 3 ft Sun High Zone 3a
big sagebrush Artemisia tridentata Tree 4 ft Sun Medium Zone 3a
bigflower agoseris Agoseris grandiflora Wildflower (forb) 1.8 ft Sun Medium Zone 6a
bigseed biscuitroot Lomatium macrocarpum Wildflower (forb) 6 in Sun Low Zone 4b
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
Blue Mountain buckwheat Eriogonum strictum Wildflower (forb) 2.2 ft Sun Low Zone 5a
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
Booth's willow Salix boothii Shrub 24 ft Shade-tolerant High Zone 8b
boxelder Acer negundo Tree 60 ft Shade-tolerant Medium Zone 2b
broadleaf arnica Arnica latifolia Wildflower (forb) 2 ft Sun–part shade High Zone 4a
Brown's peony Paeonia brownii Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 5a
buckbean Menyanthes trifoliata Wildflower (forb) 10 in Sun–part shade High Zone 4a
bud sagebrush Picrothamnus desertorum Shrub 2 ft Sun Low Zone 3a
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 false hellebore Veratrum californicum Wildflower (forb) 6 ft Shade-tolerant High Zone 3b
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
Canby's biscuitroot Lomatium canbyi Wildflower (forb) 10 in Sun Low Zone 4b
Cascara buckthorn Frangula purshiana Tree 35 ft Shade-tolerant Medium Zone 7a
Chamisso arnica Arnica chamissonis Wildflower (forb) 2.5 ft Sun–part shade High Zone 4a
chamisso sedge Carex pachystachya Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
chokecherry Prunus virginiana Tree 25 ft Sun Medium Zone 3a
clasping arnica Arnica amplexicaulis Wildflower (forb) 2.5 ft Shade-tolerant High Zone 5a
cloaked bulrush Scirpus pallidus Grass or grass-like 5 ft Sun Medium Zone 3b
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 juniper Juniperus communis Tree 10 ft Sun Low Zone 3a
common rush Juncus effusus Grass or grass-like 6.6 ft Sun Medium Zone 3b
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
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 milkvetch Astragalus curvicarpus Wildflower (forb) 5 in Sun Low Zone 5a
curvepod yellowcress Rorippa curvisiliqua Wildflower (forb) 1 ft Shade-tolerant High Zone 12b
darkthroat shootingstar Dodecatheon pulchellum Wildflower (forb) 2 ft Sun–part shade Medium Zone 4a
desert centaury Centaurium exaltatum Wildflower (forb) 1.5 ft Sun Medium Zone 12b
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' grasswidow Olsynium douglasii Wildflower (forb) 1 ft Sun Medium Zone 5a
Douglas' sedge Carex douglasii Grass or grass-like 1.5 ft Sun Medium Zone 4a
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
dwarf bilberry Vaccinium cespitosum Shrub 1 ft Shade-tolerant High Zone 4a
dwarf purple monkeyflower Mimulus nanus Wildflower (forb) 6 in Sun Low Zone 10b
dwarf rose Rosa gymnocarpa Shrub 3 ft Shade-tolerant Medium Zone 5b
elephanthead lousewort Pedicularis groenlandica Wildflower (forb) 2.5 ft Sun–part shade High Zone 4a
Engelmann's aster Eucephalus engelmannii Wildflower (forb) 6 ft Shade-tolerant Medium Zone 4a
Eschscholtz's buttercup Ranunculus eschscholtzii Wildflower (forb) 1 ft Sun Medium Zone 4a
fall panicgrass Panicum dichotomiflorum Grass or grass-like 3.3 ft Sun High Zone 3a
fernleaf biscuitroot Lomatium dissectum Wildflower (forb) 15 ft Sun–part shade Low Zone 8a
fireweed Chamerion angustifolium Wildflower (forb) 5.5 ft Sun–part shade High Zone 3b
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
fourwing saltbush Atriplex canescens Shrub 4 ft Sun Medium Zone 3a
fowl mannagrass Glyceria striata Grass or grass-like 5.7 ft Shade-tolerant Medium Zone 3b
fox sedge Carex vulpinoidea Grass or grass-like 3.2 ft Sun–part shade 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
Gardner's saltbush Atriplex gardneri Shrub 4 ft Sun Low Zone 3b
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
glaucus willowherb Epilobium glaberrimum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 6b
golden currant Ribes aureum Shrub 10 ft Sun–part shade Low Zone 3b
gooseberry currant Ribes montigenum Shrub 1 ft Sun–part shade Medium Zone 7a
gooseberryleaf globemallow Sphaeralcea grossulariifolia Wildflower (forb) 2 ft Sun–part shade Low Zone 5a
grand fir Abies grandis Tree 150 ft Shade-tolerant Medium Zone 4a
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
Great Basin calicoflower Downingia laeta Wildflower (forb) 10 in Sun High Zone 12b
greater creeping spearwort Ranunculus flammula Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4a
green alder Alnus viridis Tree 10 ft Sun–part shade High Zone 1a
green needlegrass Nassella viridula Grass or grass-like 2 ft Sun Low Zone 3b
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
hairy arnica Arnica mollis Wildflower (forb) 2 ft Sun–part shade High Zone 4a
hardstem bulrush Schoenoplectus acutus Grass or grass-like 9.8 ft Sun High Zone 3b
heartleaf arnica Arnica cordifolia Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4b
heartleaf bittercress Cardamine cordifolia Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4b
high northern buttercup Ranunculus hyperboreus Wildflower (forb) 1 ft Sun — Zone 1a
hollyleaved barberry Mahonia aquifolium Shrub 8 ft Shade-tolerant Low Zone 3a
hooded lady's tresses Spiranthes romanzoffiana Wildflower (forb) 2.5 ft Sun–part shade High Zone 3b
Hooker's balsamroot Balsamorhiza hookeri Wildflower (forb) 1 ft Sun–part shade Medium Zone 5b
Hooker's evening primrose Oenothera elata Wildflower (forb) 5 ft Sun High Zone 5a
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
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
lambstongue ragwort Senecio integerrimus Wildflower (forb) 1.1 ft Sun–part shade Medium Zone 3b
largeflower hawksbeard Crepis occidentalis Wildflower (forb) 11 in Sun Low Zone 5a
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
leafy pondweed Potamogeton foliosus Wildflower (forb) — Sun High Zone 3b
Leiberg's bluegrass Poa leibergii Grass or grass-like 1.5 ft Sun Medium Zone 5a
Lemmon's needlegrass Achnatherum lemmonii Grass or grass-like 3 ft Sun Low Zone 4b
Lemmon's willow Salix lemmonii Shrub 14 ft Sun–part shade High Zone 4b
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 horsebrush Tetradymia glabrata Shrub 12 ft Sun Low Zone 6a
littleleaf pussytoes Antennaria microphylla Wildflower (forb) 1 ft Sun Low Zone 3b
lodgepole pine Pinus contorta Tree 99 ft Sun Medium Zone 1a
longleaf phlox Phlox longifolia Wildflower (forb) 1.2 ft Sun–part shade Low Zone 6a
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
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
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
miner's lettuce Claytonia perfoliata Wildflower (forb) 1 ft Shade-tolerant Medium Zone 12b
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 pepperweed Lepidium montanum Wildflower (forb) 10 in Sun–part shade Low Zone 4a
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
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
needle and thread Hesperostipa comata Grass or grass-like 3 ft Sun Low Zone 3b
nineleaf biscuitroot Lomatium triternatum Wildflower (forb) 2.2 ft Sun–part shade Medium Zone 4a
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
northwestern Indian paintbrush Castilleja angustifolia Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4a
Nuttall's povertyweed Monolepis nuttalliana Wildflower (forb) 10 in Sun Medium Zone 12a
oneflower helianthella Helianthella uniflora Wildflower (forb) 2 ft Sun–part shade Low Zone 5a
onespike danthonia Danthonia unispicata Grass or grass-like 10 in Sun Low Zone 4b
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 ninebark Physocarpus capitatus Shrub 8 ft Sun Low Zone 4a
Pacific onion Allium validum Wildflower (forb) 2 ft Sun–part shade High Zone 5b
pale agoseris Agoseris glauca Shrub 1 ft Sun Medium Zone 4a
pale evening primrose Oenothera pallida Wildflower (forb) 2 ft Sun Low Zone 3b
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
peachleaf willow Salix amygdaloides Tree 60 ft Sun High Zone 4a
pearly pussytoes Antennaria anaphaloides Wildflower (forb) 2.5 ft Sun–part shade Medium Zone 4a
pinkfairies Clarkia pulchella Wildflower (forb) 2 ft Sun–part shade Medium Zone 12a
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
poverty rush Juncus tenuis Grass or grass-like 1.5 ft Sun–part shade Medium Zone 3b
prickly currant Ribes lacustre Shrub 3 ft Shade-tolerant — Zone 1a
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
Raynolds' sedge Carex raynoldsii Grass or grass-like 2 ft Shade-tolerant Medium Zone 4a
red elderberry Sambucus racemosa Tree 18 ft Sun–part shade High Zone 4a
redosier dogwood Cornus sericea Tree 12 ft Sun High Zone 3b
rock buckwheat Eriogonum sphaerocephalum Shrub 1 ft Sun Low Zone 5a
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
rose spirea Spiraea douglasii Shrub 7 ft Sun Low Zone 5a
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
rough bugleweed Lycopus asper Wildflower (forb) 2.1 ft Shade-tolerant High Zone 3b
roundleaf alumroot Heuchera cylindrica Wildflower (forb) 6 ft Sun–part shade Low Zone 6a
royal penstemon Penstemon speciosus Wildflower (forb) 2.5 ft Sun Low Zone 4a
rubber rabbitbrush Ericameria nauseosa Shrub 4 ft Sun Medium Zone 3b
rush pussytoes Antennaria luzuloides Wildflower (forb) 2 ft Sun Medium Zone 4a
sagebrush buttercup Ranunculus glaberrimus Wildflower (forb) 6 in Sun High Zone 3a
sagebrush mariposa lily Calochortus macrocarpus Wildflower (forb) 1.8 ft Sun Low Zone 5a
saltgrass Distichlis spicata Grass or grass-like 1.1 ft Sun Medium 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
seep monkeyflower Mimulus guttatus Wildflower (forb) 2.5 ft Shade-tolerant High 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
shortspine horsebrush Tetradymia spinosa Shrub 3.2 ft Sun Low Zone 4b
showy milkweed Asclepias speciosa Wildflower (forb) 6 ft Sun Medium Zone 4a
Sierra fumewort Corydalis caseana Wildflower (forb) 3 ft Shade-tolerant Medium Zone 2b
Sierra rush Juncus nevadensis Grass or grass-like 2 ft Sun–part shade High Zone 4a
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
silvery lupine Lupinus argenteus Wildflower (forb) 1.5 ft Sun Low Zone 3a
skunkbush sumac Rhus trilobata Shrub 4 ft Sun–part shade Low Zone 2a
slender cinquefoil Potentilla gracilis Wildflower (forb) 2.4 ft Sun Low Zone 3a
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
small camas Camassia quamash Wildflower (forb) 2.3 ft Shade-tolerant High Zone 4b
small enchanter's nightshade Circaea alpina Wildflower (forb) 11 in Shade-tolerant Medium Zone 3b
smallwing sedge Carex microptera Grass or grass-like 2 ft Sun High Zone 4a
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
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 purple geranium Geranium viscosissimum Wildflower (forb) 3 ft Shade-tolerant Low Zone 6a
streambank wild hollyhock Iliamna rivularis Wildflower (forb) 6 ft Sun–part shade Medium Zone 4a
subalpine fir Abies lasiocarpa Tree 90 ft Shade-tolerant Medium Zone 2a
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 cottongrass Eriophorum angustifolium Grass or grass-like 2 ft Sun High Zone 3a
tall fringed bluebells Mertensia ciliata Wildflower (forb) 2 ft Sun–part shade High Zone 5a
tall groundsel Senecio hydrophiloides Wildflower (forb) 10 in Shade-tolerant High Zone 4b
tall trisetum Trisetum canescens Grass or grass-like 3.5 ft Sun–part shade Medium Zone 4a
tall woolly buckwheat Eriogonum elatum Wildflower (forb) 3 ft Sun Low Zone 4b
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
tapertip rush Juncus acuminatus Grass or grass-like 3 ft Sun–part shade High Zone 4a
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
threadleaf fleabane Erigeron filifolius Wildflower (forb) 1 ft Sun Low Zone 6a
threadleaf sedge Carex filifolia Grass or grass-like 1.2 ft Sun Low Zone 3b
Thurber's needlegrass Achnatherum thurberianum Grass or grass-like 2 ft Sun Low Zone 5a
thymeleaf buckwheat Eriogonum thymoides Wildflower (forb) 1 ft Sun Low Zone 5a
tiny mousetail Myosurus minimus Wildflower (forb) 5 in Sun–part shade Medium Zone 12b
Tolmie's onion Allium tolmiei Wildflower (forb) 1 ft Sun Medium Zone 4a
Torrey's rush Juncus torreyi Grass or grass-like 3.1 ft Sun Medium Zone 3b
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 juniper Juniperus osteosperma Tree 26 ft Sun Low Zone 4b
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 fescue Festuca occidentalis Grass or grass-like 3 ft Shade-tolerant Low Zone 3a
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 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 water hemlock Cicuta douglasii Wildflower (forb) 6 ft Sun High Zone 4b
western waterleaf Hydrophyllum occidentale Wildflower (forb) 1.5 ft Shade-tolerant Medium Zone 5b
western wheatgrass Pascopyrum smithii Grass or grass-like 2 ft Sun Medium Zone 3a
western white clematis Clematis ligusticifolia Vine 1 ft Sun–part shade Medium 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 sagebrush Artemisia ludoviciana Wildflower (forb) 3 ft Sun Low Zone 4a
whitebark pine Pinus albicaulis Tree 65 ft Sun–part shade Medium Zone 1b
whitebark raspberry Rubus leucodermis Vine 1 ft Sun Medium Zone 8a
Wilcox's penstemon Penstemon wilcoxii Wildflower (forb) 3 ft Sun Low Zone 4a
winterfat Krascheninnikovia lanata Shrub 2 ft Sun Low Zone 2a
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
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 rabbitbrush Chrysothamnus viscidiflorus Shrub 3 ft Sun Low Zone 5a
yellow spiderflower Cleome lutea Wildflower (forb) 2.7 ft Sun Low Zone 12a
yellow willow Salix lutea Tree 16 ft Sun–part shade High Zone 3a

Other native species recorded here 119

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 fescue Festuca brachyphylla
  • American bird's-foot trefoil Lotus unifoliolatus
  • American mannagrass Glyceria grandis
  • American rockbrake Cryptogramma acrostichoides
  • American yellowrocket Barbarea orthoceras
  • annual muhly Muhlenbergia minutissima
  • arroyo willow Salix lasiolepis
  • ballhead ipomopsis Ipomopsis congesta
  • balsam groundsel Packera paupercula
  • bastard toadflax Comandra umbellata
  • bearded flatsedge Cyperus squarrosus
  • beautiful sandwort Minuartia rubella
  • Bebb willow Salix bebbiana
  • bog yellowcress Rorippa palustris
  • brittle bladderfern Cystopteris fragilis
  • brook cinquefoil Potentilla rivalis
  • bushy knotweed Polygonum ramosissimum
  • chairmaker's bulrush Schoenoplectus americanus
  • clasping Venus' looking-glass Triodanis perfoliata
  • clustered broomrape Orobanche fasciculata
  • common starlily Leucocrinum montanum
  • cottonbatting plant Pseudognaphalium stramineum
  • Crawford's sedge Carex crawfordii
  • curlycup gumweed Grindelia squarrosa
  • cutleaf nightshade Solanum triflorum
  • desert princesplume Stanleya pinnata
  • Douglas' knotweed Polygonum douglasii
  • Dudley's rush Juncus dudleyi
  • false mermaidweed Floerkea proserpinacoides
  • falsegold groundsel Packera pseudaurea
  • flatspine stickseed Lappula occidentalis
  • foxtail barley Hordeum jubatum
  • fragrant bedstraw Galium triflorum
  • Fremont's goosefoot Chenopodium fremontii
  • fringed willowherb Epilobium ciliatum
  • giant red Indian paintbrush Castilleja miniata
  • green false hellebore Veratrum viride
  • greenflowered wintergreen Pyrola chlorantha
  • hairy evening primrose Oenothera villosa
  • hemlock waterparsnip Sium suave
  • hoary tansyaster Machaeranthera canescens
  • hookedspur violet Viola adunca
  • Hornemann's willowherb Epilobium hornemannii
  • lanceleaf figwort Scrophularia lanceolata
  • largeleaf sandwort Moehringia macrophylla
  • lemon scurfpea Psoralidium lanceolatum
  • lesser wirelettuce Stephanomeria minor
  • liverleaf wintergreen Pyrola asarifolia
  • Macoun's cudweed Pseudognaphalium macounii
  • manyflower stickseed Hackelia floribunda
  • manyflowered monkeyflower Mimulus floribundus
  • marsh violet Viola palustris
  • meadow deathcamas Zigadenus venenosus
  • Menzies' campion Silene menziesii
  • Menzies' fiddleneck Amsinckia menziesii
  • Mojave seablite Suaeda moquinii
  • mountain deathcamas Zigadenus elegans
  • mountain tansymustard Descurainia incana
  • mountain tarweed Madia glomerata
  • muskflower Mimulus moschatus
  • narrowleaf bur-reed Sparganium angustifolium
  • narrowleaf goosefoot Chenopodium leptophyllum
  • narrowleaf minerslettuce Montia linearis
  • needleleaf navarretia Navarretia intertexta
  • nodding buckwheat Eriogonum cernuum
  • nodding chickweed Cerastium nutans
  • northern bog violet Viola nephrophylla
  • northern water plantain Alisma triviale
  • oneflowered broomrape Orobanche uniflora
  • pale false mannagrass Torreyochloa pallida
  • Pennsylvania pellitory Parietaria pensylvanica
  • pimpernel willowherb Epilobium anagallidifolium
  • pleated gentian Gentiana affinis
  • povertyweed Iva axillaris
  • pullup muhly Muhlenbergia filiformis
  • purple meadow-rue Thalictrum dasycarpum
  • Pursh seepweed Suaeda calceoliformis
  • redwool plantain Plantago eriopoda
  • ribseed sandmat Chamaesyce glyptosperma
  • Rocky Mountain rush Juncus saximontanus
  • Rocky Mountain woodsia Woodsia scopulina
  • rosy pussytoes Antennaria rosea
  • roughfruit fairybells Prosartes trachycarpa
  • rusty lupine Lupinus pusillus
  • salt sandspurry Spergularia salina
  • scentbottle Platanthera dilatata
  • shaggy fleabane Erigeron pumilus
  • shy wallflower Erysimum inconspicuum
  • single delight Moneses uniflora
  • sixweeks fescue Vulpia octoflora
  • sleepy silene Silene antirrhina
  • slender bog orchid Platanthera stricta
  • spearleaf stonecrop Sedum lanceolatum
  • 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
  • sweetcicely Osmorhiza berteroi
  • tall annual willowherb Epilobium brachycarpum
  • tasselflower brickellbush Brickellia grandiflora
  • threadleaf crowfoot Ranunculus trichophyllus
  • tiny trumpet Collomia linearis
  • tufted lovegrass Eragrostis pectinacea
  • veiny dock Rumex venosus
  • veiny meadow-rue Thalictrum venulosum
  • velvetweed Oenothera curtiflora
  • Virginia pepperweed Lepidium virginicum
  • Virginia strawberry Fragaria virginiana
  • western tansymustard Descurainia pinnata
  • white heath aster Symphyotrichum ericoides
  • whitestem blazingstar Mentzelia albicaulis
  • witchgrass Panicum capillare
  • wood bluegrass Poa nemoralis
  • woolly sedge Carex pellita
  • Wright's cudweed Pseudognaphalium canescens
  • yellow avens Geum aleppicum
  • yellow sedge Carex flava
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.

  • claspleaf twistedstalkStreptopus amplexifolius
  • common pepperweedLepidium densiflorum
  • common reedPhragmites australis
  • 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, Elmore County and Idaho
MeasureElmore CountyTypical countyStatewide
Native species 419 302 975
Garden-ready natives 300 211 591
Tree 37 — 65
Shrub 48 — 97
Wildflower (forb) 240 — 552
Grass or grass-like 86 — 206
Vine 4 — 14
Fern 4 — 41

Neighboring counties

Counties that share a ZIP code with Elmore 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
Elmore County (county FIPS 16039), Idaho. 419 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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