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Native plants · Wyoming

Native plants of Johnson County

542 plant species are recorded as native to Wyoming in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Johnson County by USDA PLANTS. 308 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 5 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Johnson County, Wyoming

Native species
542 Typical Wyoming county: 414 (median of 23 counties)
Garden-ready natives
308 Typical Wyoming county: 243
Share by type (all 542 native species)
Percent of the 542 native species in each growth type
Tree 7% (38)
Shrub 10% (52)
Wildflower (forb) 58% (314)
Grass or grass-like 22% (120)
Vine 1% (7)
Fern 2% (11)

Wildflowers make up the largest share of the native list (58%), followed by grasses and grass-like plants (22%).

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 zone 5a (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 Johnson County, Wyoming
PlantType HeightLight Water useHardy to
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
alkali sacaton Sporobolus airoides Grass or grass-like 3 ft Sun Low 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 mountainsorrel Oxyria digyna Wildflower (forb) 1 ft Sun–part shade Medium Zone 3a
alpine sweetvetch Hedysarum alpinum Wildflower (forb) 2 ft Sun Medium Zone 1a
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 black currant Ribes americanum Shrub 3 ft — — Zone 2b
American licorice Glycyrrhiza lepidota Wildflower (forb) 4 ft Sun–part shade High Zone 3b
American plum Prunus americana Tree 24 ft Sun Medium 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
American water horehound Lycopus americanus Wildflower (forb) 1.8 ft Shade-tolerant High Zone 3b
analogue sedge Carex simulata Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
antelope bitterbrush Purshia tridentata Shrub 6 ft Sun–part shade Low Zone 3b
arctic bluegrass Poa arctica Grass or grass-like 2 ft Sun — Zone 1a
arctic pearlwort Sagina saginoides Wildflower (forb) 4 in Sun–part shade High Zone 4a
arctic raspberry Rubus arcticus Wildflower (forb) 1 ft Sun — Zone 1a
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
arumleaf arrowhead Sagittaria cuneata Wildflower (forb) 2.6 ft Sun Medium Zone 4a
awlfruit sedge Carex stipata Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
balsam poplar Populus balsamifera Tree 80 ft Sun High Zone 1a
basin wildrye Leymus cinereus Grass or grass-like 5 ft Sun High Zone 3a
Bebb's sedge Carex bebbii Grass or grass-like 3 ft Shade-tolerant High Zone 3b
big sagebrush Artemisia tridentata Tree 4 ft Sun Medium Zone 3a
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 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 willowherb Epilobium leptophyllum Wildflower (forb) 3.6 ft Sun–part shade High 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
broadbeard beardtongue Penstemon angustifolius Wildflower (forb) 3 ft Sun Low Zone 4b
broadleaf arnica Arnica latifolia Wildflower (forb) 2 ft Sun–part shade High Zone 4a
broadleaf cattail Typha latifolia Wildflower (forb) 5 ft Sun–part shade High Zone 3b
broom snakeweed Gutierrezia sarothrae Shrub 1.5 ft Sun Medium Zone 3b
buckbean Menyanthes trifoliata Wildflower (forb) 10 in Sun–part shade High Zone 4a
bunchberry dogwood Cornus canadensis Shrub 6 in Shade-tolerant High Zone 4b
California oatgrass Danthonia californica Grass or grass-like 2 ft Sun Medium Zone 9a
Canada goldenrod Solidago canadensis Wildflower (forb) 3.5 ft Sun Medium Zone 3a
Canada wildrye Elymus canadensis Grass or grass-like 3 ft Shade-tolerant 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
Carolina foxtail Alopecurus carolinianus Grass or grass-like 1.7 ft Sun Low Zone 3a
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
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 cowparsnip Heracleum maximum Wildflower (forb) 8 ft Sun High Zone 3b
common duckweed Lemna minor Wildflower (forb) — Sun High Zone 3b
common juniper Juniperus communis Tree 10 ft Sun Low Zone 3a
common mare's-tail Hippuris vulgaris Wildflower (forb) 2.8 ft Sun High Zone 3b
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
common spikerush Eleocharis palustris Grass or grass-like 1.3 ft Sun High Zone 3b
common threesquare Schoenoplectus pungens Grass or grass-like 4.9 ft Sun High Zone 3b
coon's tail Ceratophyllum demersum Wildflower (forb) — Sun–part shade High Zone 3b
cosmopolitan bulrush Bolboschoenus maritimus Grass or grass-like 3.2 ft Sun Medium Zone 5a
cous biscuitroot Lomatium cous Wildflower (forb) 10 in Sun Low Zone 4b
creeping barberry Mahonia repens Shrub 2 ft Shade-tolerant Medium Zone 5a
creeping juniper Juniperus horizontalis Shrub 4 ft Sun High Zone 3a
curl-leaf mountain mahogany Cercocarpus ledifolius Tree 20 ft Sun–part shade Low Zone 2b
cursed buttercup Ranunculus sceleratus Wildflower (forb) 2 ft Shade-tolerant High Zone 12b
cutleaf coneflower Rudbeckia laciniata Wildflower (forb) 8.2 ft Shade-tolerant Low Zone 3b
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
diamondleaf willow Salix planifolia Tree 8 ft Sun Medium Zone 3b
dotted blazing star Liatris punctata Wildflower (forb) 2 ft Sun Medium Zone 3a
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
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
eastern cottonwood Populus deltoides Tree 190 ft Sun High Zone 3a
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
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
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
fourwing saltbush Atriplex canescens Shrub 4 ft Sun Medium Zone 3a
fowl bluegrass Poa palustris Grass or grass-like 4 ft Sun–part shade Medium Zone 3b
fowl mannagrass Glyceria striata Grass or grass-like 5.7 ft Shade-tolerant Medium Zone 3b
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
giant goldenrod Solidago gigantea Wildflower (forb) 8.2 ft Sun–part shade Medium Zone 4a
glaucous bluegrass Poa glauca Grass or grass-like 2 ft Sun — Zone 3a
golden currant Ribes aureum Shrub 10 ft Sun–part shade Low Zone 3b
golden sedge Carex aurea Grass or grass-like 1.2 ft Sun–part shade High Zone 4a
granite prickly phlox Linanthus pungens Wildflower (forb) 2 ft Shade-tolerant Low Zone 4a
gray aster Eurybia glauca Wildflower (forb) 2 ft Sun Medium Zone 3a
grayleaf willow Salix glauca Tree 4 ft — — Zone 9b
greasewood Sarcobatus vermiculatus Shrub 10 ft Sun Low Zone 3b
greater creeping spearwort Ranunculus flammula Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4a
green ash Fraxinus pennsylvanica Tree 80 ft Shade-tolerant Medium Zone 2b
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
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
hairy false goldenaster Heterotheca villosa Wildflower (forb) 3 ft Sun Low 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
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 bentgrass Agrostis idahoensis Grass or grass-like 1.4 ft Sun Medium 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
inland rush Juncus interior Grass or grass-like 3 ft Sun–part shade Medium Zone 3b
inland sedge Carex interior Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
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 hawksbeard Crepis occidentalis Wildflower (forb) 11 in Sun Low Zone 5a
largeleaf avens Geum macrophyllum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4a
largeleaf pondweed Potamogeton amplifolius Wildflower (forb) — Sun High Zone 4a
leafy pondweed Potamogeton foliosus Wildflower (forb) — Sun High Zone 3b
least willow Salix rotundifolia Shrub 2 in — — Zone 4a
Lemmon's willow Salix lemmonii Shrub 14 ft Sun–part shade High Zone 4b
Lewis flax Linum lewisii Wildflower (forb) 2.5 ft Sun Medium Zone 3b
limber pine Pinus flexilis Tree 66 ft Sun Low Zone 3a
little barley Hordeum pusillum Grass or grass-like 1.2 ft Sun Medium Zone 10b
little bluestem Schizachyrium scoparium Grass or grass-like 3 ft Sun Low Zone 3b
littleleaf pussytoes Antennaria microphylla Wildflower (forb) 1 ft Sun Low Zone 3b
lodgepole pine Pinus contorta Tree 99 ft Sun Medium Zone 1a
longleaf starwort Stellaria longifolia Wildflower (forb) 1.5 ft Shade-tolerant High Zone 3b
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
Macoun's buttercup Ranunculus macounii Wildflower (forb) 1 ft Sun — Zone 1a
maiden blue eyed Mary Collinsia parviflora Wildflower (forb) 1 ft Shade-tolerant Medium 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
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 brome Bromus marginatus Grass or grass-like 4 ft Sun High Zone 4b
mountain sedge Carex scopulorum Grass or grass-like 1.3 ft Sun–part shade High Zone 3b
nannyberry Viburnum lentago Tree 28 ft Shade-tolerant Medium Zone 4a
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
needle and thread Hesperostipa comata Grass or grass-like 3 ft Sun Low Zone 3b
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 singlespike sedge Carex scirpoidea Grass or grass-like 1.5 ft Shade-tolerant Medium Zone 3b
Northwest Territory sedge Carex utriculata Grass or grass-like 3.5 ft Sun High Zone 3a
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
onespike danthonia Danthonia unispicata Grass or grass-like 10 in Sun Low Zone 4b
orange agoseris Agoseris aurantiaca Wildflower (forb) 1 ft Sun Medium Zone 4a
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
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
Pennsylvania buttercup Ranunculus pensylvanicus Wildflower (forb) 3.9 ft Shade-tolerant High Zone 4b
pin cherry Prunus pensylvanica Tree 30 ft Sun Medium Zone 3b
pipsissewa Chimaphila umbellata Shrub 1.5 ft Shade-tolerant Low Zone 3b
plains muhly Muhlenbergia cuspidata Grass or grass-like 1.4 ft Sun Low Zone 3b
plains pricklypear Opuntia polyacantha Shrub 2 ft Sun Low Zone 4b
prairie fleabane Erigeron strigosus Wildflower (forb) 3 ft Sun Medium Zone 4b
prairie Junegrass Koeleria macrantha Grass or grass-like 1.5 ft Shade-tolerant High Zone 3b
prairie sagewort Artemisia frigida Shrub 2 ft Sun–part shade Low Zone 3a
prairie sandreed Calamovilfa longifolia Grass or grass-like 4.5 ft Sun Medium Zone 3b
prickly currant Ribes lacustre Shrub 3 ft Shade-tolerant — Zone 1a
prickly rose Rosa acicularis Shrub 4 ft Shade-tolerant High Zone 3b
purple avens Geum rivale Wildflower (forb) 3 ft Sun High Zone 4a
purple milkvetch Astragalus agrestis Wildflower (forb) 1 ft Sun Low Zone 4a
purple prairie clover Dalea purpurea Wildflower (forb) 3 ft Sun Medium Zone 3b
quaking aspen Populus tremuloides Tree 65 ft Sun High Zone 1a
Raynolds' sedge Carex raynoldsii Grass or grass-like 2 ft Shade-tolerant Medium Zone 4a
red goosefoot Chenopodium rubrum Wildflower (forb) 3 ft Sun High Zone 12b
redosier dogwood Cornus sericea Tree 12 ft Sun High Zone 3b
reed canarygrass Phalaris arundinacea Grass or grass-like 5 ft Sun High Zone 3b
Richardson's geranium Geranium richardsonii Wildflower (forb) 3 ft Sun–part shade High Zone 3b
roadside agrimony Agrimonia striata Wildflower (forb) 6 ft Shade-tolerant Medium Zone 3a
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 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
rubber rabbitbrush Ericameria nauseosa Shrub 4 ft Sun Medium Zone 3b
russet buffaloberry Shepherdia canadensis Shrub 6 ft Sun–part shade Medium Zone 1a
sagebrush buttercup Ranunculus glaberrimus Wildflower (forb) 6 in Sun High Zone 3a
sago pondweed Stuckenia pectinata Wildflower (forb) — Sun High Zone 3b
salt heliotrope Heliotropium curassavicum Wildflower (forb) 1.2 ft Sun Medium Zone 4b
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
sandbar willow Salix interior Tree 30 ft Sun — Zone 1a
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
sawsepal penstemon Penstemon glaber Wildflower (forb) 2 ft Sun Medium Zone 3b
scarlet globemallow Sphaeralcea coccinea Wildflower (forb) 1.5 ft Sun Low Zone 5a
Scouler's willow Salix scouleriana Tree 50 ft Sun–part shade High Zone 6a
scratchgrass Muhlenbergia asperifolia Grass or grass-like 2 ft Shade-tolerant High Zone 5b
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
shining willow Salix lucida Tree 13 ft Sun–part shade High Zone 3a
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
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
silver buffaloberry Shepherdia argentea Tree 18 ft Sun–part shade Medium Zone 3b
silver sagebrush Artemisia cana Shrub 5 ft Sun Low Zone 3a
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
silvery sedge Carex canescens Grass or grass-like 2 ft Sun–part shade High Zone 4a
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
slimstem reedgrass Calamagrostis stricta Grass or grass-like 3 ft Sun–part shade High Zone 3a
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
soapweed yucca Yucca glauca Shrub 1 ft Sun Low Zone 4b
softleaf sedge Carex disperma Grass or grass-like 2 ft Sun–part shade High Zone 3b
softstem bulrush Schoenoplectus tabernaemontani Grass or grass-like 9 ft Sun 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
spineless horsebrush Tetradymia canescens Shrub 4 ft Sun Low Zone 9a
spotted joe pye weed Eutrochium maculatum Wildflower (forb) 6 ft Sun–part shade High Zone 4b
spreading yellowcress Rorippa sinuata Wildflower (forb) 1 ft Sun Medium Zone 3b
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 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 goldenrod Oligoneuron rigidum Wildflower (forb) 3.6 ft Sun–part shade Medium Zone 3a
subalpine fir Abies lasiocarpa Tree 90 ft Shade-tolerant Medium Zone 2a
sulphur-flower buckwheat Eriogonum umbellatum Shrub 1 ft Sun Low Zone 8a
tall cinquefoil Potentilla arguta Wildflower (forb) 3 ft Sun–part shade Medium Zone 3b
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
tanseyleaf tansyaster Machaeranthera tanacetifolia Wildflower (forb) 2 ft Sun Medium Zone 4a
tapertip hawksbeard Crepis acuminata Wildflower (forb) 3 ft Sun–part shade Low Zone 3b
tenpetal blazingstar Mentzelia decapetala Wildflower (forb) 3.5 ft Sun Medium Zone 3b
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
thimbleberry Rubus parviflorus Shrub 4 ft Sun–part shade High Zone 4b
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
thrift mock goldenweed Stenotus armerioides Wildflower (forb) 1 ft Sun Low Zone 5a
timber oatgrass Danthonia intermedia Grass or grass-like 1.5 ft Sun–part shade Low Zone 4a
toad rush Juncus bufonius Grass or grass-like 1 ft Sun Medium Zone 12a
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
umbrella starwort Stellaria umbellata Wildflower (forb) 1 ft Shade-tolerant High Zone 4b
upright prairie coneflower Ratibida columnifera Wildflower (forb) 3.1 ft Sun Medium Zone 3a
variableleaf pondweed Potamogeton gramineus Wildflower (forb) — Sun High Zone 3b
vernal water-starwort Callitriche palustris Wildflower (forb) 10 in Sun Medium Zone 4a
water birch Betula occidentalis Tree 25 ft Sun–part shade High Zone 1a
water knotweed Polygonum amphibium Wildflower (forb) 1 in Sun High Zone 5a
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 pearly everlasting Anaphalis margaritacea Wildflower (forb) 3 ft Sun–part shade Medium 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 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 panicle aster Symphyotrichum lanceolatum Wildflower (forb) 6 ft Sun–part shade High Zone 3b
white prairie clover Dalea candida Wildflower (forb) 2 ft Sun–part shade Medium Zone 3b
white sagebrush Artemisia ludoviciana Wildflower (forb) 3 ft Sun Low Zone 4a
white spruce Picea glauca Tree 100 ft Sun–part shade Medium Zone 1a
white sweetvetch Hedysarum sulphurescens Wildflower (forb) 1.5 ft Sun–part shade Low Zone 4a
wild bergamot Monarda fistulosa Wildflower (forb) 4.9 ft Sun–part shade High Zone 4a
winterfat Krascheninnikovia lanata Shrub 2 ft Sun Low Zone 2a
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
woolly plantain Plantago patagonica Wildflower (forb) 6 in Sun Low Zone 12b
woollypod milkvetch Astragalus purshii Wildflower (forb) 7 in Sun Low Zone 4a
yellow evening primrose Oenothera flava Wildflower (forb) 2.5 ft Sun–part shade Medium Zone 4a
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 234

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
  • alpine lewisia Lewisia pygmaea
  • alpine milkvetch Astragalus alpinus
  • alpine pondweed Potamogeton alpinus
  • American mannagrass Glyceria grandis
  • American sloughgrass Beckmannia syzigachne
  • Apocynum ×floribundum Apocynum ×floribundum
  • aridland goosefoot Chenopodium desiccatum
  • Aunt Lucy Ellisia nyctelea
  • autumn dwarf gentian Gentianella amarella
  • Back's sedge Carex backii
  • ballhead ipomopsis Ipomopsis congesta
  • balsam groundsel Packera paupercula
  • bastard toadflax Comandra umbellata
  • beautiful cinquefoil Potentilla pulcherrima
  • beautiful sandwort Minuartia rubella
  • Bebb willow Salix bebbiana
  • biannual lettuce Lactuca ludoviciana
  • bigbract verbena Verbena bracteata
  • bitter fleabane Erigeron acris
  • bluntleaf sandwort Moehringia lateriflora
  • bluntleaved orchid Platanthera obtusata
  • boreal starwort Stellaria borealis
  • bottlebrush sedge Carex hystericina
  • brittle bladderfern Cystopteris fragilis
  • brittle pricklypear Opuntia fragilis
  • brook cinquefoil Potentilla rivalis
  • brownish sedge Carex brunnescens
  • buffalobur nightshade Solanum rostratum
  • bushy knotweed Polygonum ramosissimum
  • Canada lettuce Lactuca canadensis
  • Canadian gooseberry Ribes oxyacanthoides
  • candle anemone Anemone cylindrica
  • carelessweed Cyclachaena xanthiifolia
  • Carolina draba Draba reptans
  • chairmaker's bulrush Schoenoplectus americanus
  • clustered broomrape Orobanche fasciculata
  • common starlily Leucocrinum montanum
  • Cuman ragweed Ambrosia psilostachya
  • curlycup gumweed Grindelia squarrosa
  • curlytop knotweed Polygonum lapathifolium
  • cutleaf nightshade Solanum triflorum
  • desert biscuitroot Lomatium foeniculaceum
  • desert goosefoot Chenopodium pratericola
  • desert princesplume Stanleya pinnata
  • Douglas' knotweed Polygonum douglasii
  • Drummond's campion Silene drummondii
  • Drummond's false pennyroyal Hedeoma drummondii
  • elkweed Frasera speciosa
  • entireleaved thelypody Thelypodium integrifolium
  • false buffalograss Munroa squarrosa
  • feathery false lily of the valley Maianthemum racemosum
  • fetid marigold Dyssodia papposa
  • fineleaf hymenopappus Hymenopappus filifolius
  • fireberry hawthorn Crataegus chrysocarpa
  • flatspine stickseed Lappula occidentalis
  • Flodman's thistle Cirsium flodmanii
  • foothill bladderpod Lesquerella ludoviciana
  • foxtail barley Hordeum jubatum
  • fragrant bedstraw Galium triflorum
  • Fremont's goosefoot Chenopodium fremontii
  • fringed loosestrife Lysimachia ciliata
  • fringed willowherb Epilobium ciliatum
  • giant red Indian paintbrush Castilleja miniata
  • great ragweed Ambrosia trifida
  • green comet milkweed Asclepias viridiflora
  • greenflowered wintergreen Pyrola chlorantha
  • groundplum milkvetch Astragalus crassicarpus
  • hairy evening primrose Oenothera villosa
  • hairy hedgenettle Stachys pilosa
  • hairy waterclover Marsilea vestita
  • heavy sedge Carex gravida
  • hoary tansyaster Machaeranthera canescens
  • hookedspur violet Viola adunca
  • horned pondweed Zannichellia palustris
  • Hornemann's willowherb Epilobium hornemannii
  • horsetail Equisetum ×nelsonii
  • Howell's pussytoes Antennaria howellii
  • lacy tansyaster Machaeranthera pinnatifida
  • lanceleaf figwort Scrophularia lanceolata
  • large Indian breadroot Pediomelum esculentum
  • Laxmann's milkvetch Astragalus laxmannii
  • leathery knotweed Polygonum achoreum
  • lemon scurfpea Psoralidium lanceolatum
  • lesser spikemoss Selaginella densa
  • lilac penstemon Penstemon gracilis
  • Lindley's aster Symphyotrichum ciliolatum
  • liverleaf wintergreen Pyrola asarifolia
  • long-stolon sedge Carex inops
  • longbract frog orchid Dactylorhiza viridis
  • Macoun's barley ×Elyhordeum macounii
  • manyflower stickseed Hackelia floribunda
  • manyflowered monkeyflower Mimulus floribundus
  • marsh violet Viola palustris
  • Maryland sanicle Sanicula marilandica
  • meadow deathcamas Zigadenus venenosus
  • meadow sedge Carex praticola
  • Menzies' campion Silene menziesii
  • Modoc yellowcress Rorippa tenerrima
  • Mojave seablite Suaeda moquinii
  • moss campion Silene acaulis
  • mountain deathcamas Zigadenus elegans
  • mountain tansymustard Descurainia incana
  • mountain tarweed Madia glomerata
  • narrowleaf four o'clock Mirabilis linearis
  • narrowleaf hawkweed Hieracium umbellatum
  • narrowleaf purple coneflower Echinacea angustifolia
  • narrowleaf stoneseed Lithospermum incisum
  • neckweed Veronica peregrina
  • needleleaf navarretia Navarretia intertexta
  • needleleaf sedge Carex duriuscula
  • nodding buckwheat Eriogonum cernuum
  • nodding onion Allium cernuum
  • northern bog violet Viola nephrophylla
  • Northern Idaho biscuitroot Lomatium orientale
  • northern sweetgrass Hierochloe hirta
  • northern water plantain Alisma triviale
  • Norwegian cinquefoil Potentilla norvegica
  • oneflowered broomrape Orobanche uniflora
  • Oregon cliff fern Woodsia oregana
  • painted milkvetch Astragalus ceramicus
  • pale false mannagrass Torreyochloa pallida
  • Pennsylvania cinquefoil Potentilla pensylvanica
  • Pennsylvania pellitory Parietaria pensylvanica
  • pimpernel willowherb Epilobium anagallidifolium
  • pitseed goosefoot Chenopodium berlandieri
  • plains bluegrass Poa arida
  • plains springparsley Cymopterus acaulis
  • pleated gentian Gentiana affinis
  • Porter brome Bromus porteri
  • povertyweed Iva axillaris
  • prairie false dandelion Nothocalais cuspidata
  • prairie plantain Plantago elongata
  • prairie rose Rosa arkansana
  • prairie spiderwort Tradescantia occidentalis
  • prairie sunflower Helianthus petiolaris
  • purple meadow-rue Thalictrum dasycarpum
  • purple reedgrass Calamagrostis purpurascens
  • Pursh seepweed Suaeda calceoliformis
  • pygmyflower rockjasmine Androsace septentrionalis
  • ram's horn Proboscidea louisianica
  • rayless alkali aster Symphyotrichum ciliatum
  • red baneberry Actaea rubra
  • redwhisker clammyweed Polanisia dodecandra
  • redwool plantain Plantago eriopoda
  • ribseed sandmat Chamaesyce glyptosperma
  • Richardson's pondweed Potamogeton richardsonii
  • Rocky Mountain fescue Festuca saximontana
  • Rocky Mountain goosefoot Chenopodium salinum
  • Rocky Mountain rush Juncus saximontanus
  • Rocky Mountain woodsia Woodsia scopulina
  • rosy pussytoes Antennaria rosea
  • rough barnyardgrass Echinochloa muricata
  • roughfruit fairybells Prosartes trachycarpa
  • rush skeletonplant Lygodesmia juncea
  • rusty lupine Lupinus pusillus
  • sagebrush violet Viola vallicola
  • saline saltbush Atriplex subspicata
  • salt sandspurry Spergularia salina
  • sanddune cryptantha Cryptantha fendleri
  • scarlet beeblossom Oenothera suffrutescens
  • Scouler's popcornflower Plagiobothrys scouleri
  • scrambled eggs Corydalis aurea
  • seaside arrowgrass Triglochin maritima
  • shaggy dwarf morning-glory Evolvulus nuttallianus
  • shaggy fleabane Erigeron pumilus
  • shortbeak sedge Carex brevior
  • shortspike watermilfoil Myriophyllum sibiricum
  • shy wallflower Erysimum inconspicuum
  • sidebells wintergreen Orthilia secunda
  • silverleaf Indian breadroot Pediomelum argophyllum
  • silverscale saltbush Atriplex argentea
  • single delight Moneses uniflora
  • sixweeks fescue Vulpia octoflora
  • sleepy silene Silene antirrhina
  • slender lipfern Cheilanthes feei
  • slender phlox Microsteris gracilis
  • slender wedgescale Sphenopholis intermedia
  • slimflower scurfpea Psoralidium tenuiflorum
  • slimpod Venus' looking-glass Triodanis leptocarpa
  • small-leaf pussytoes Antennaria parvifolia
  • smooth cliffbrake Pellaea glabella
  • snowline wintergreen Pyrola minor
  • southwestern waterwort Elatine rubella
  • spearleaf stonecrop Sedum lanceolatum
  • spiny milkvetch Astragalus kentrophyta
  • spiny phlox Phlox hoodii
  • spinystar Escobaria vivipara
  • spotted fritillary Fritillaria atropurpurea
  • spotted water hemlock Cicuta maculata
  • spreading dogbane Apocynum androsaemifolium
  • spreading fleabane Erigeron divergens
  • Sprengel's sedge Carex sprengelii
  • starry false lily of the valley Maianthemum stellatum
  • stemless four-nerve daisy Tetraneuris acaulis
  • stiff sunflower Helianthus pauciflorus
  • stiffstem flax Linum rigidum
  • strict blue-eyed grass Sisyrinchium montanum
  • summer coralroot Corallorhiza maculata
  • sweetcicely Osmorhiza berteroi
  • tall annual willowherb Epilobium brachycarpum
  • tarragon Artemisia dracunculus
  • threadleaf crowfoot Ranunculus trichophyllus
  • tiny trumpet Collomia linearis
  • tobacco root Valeriana edulis
  • tower rockcress Arabis glabra
  • tumblegrass Schedonnardus paniculatus
  • twinflower Linnaea borealis
  • twoleaf waterweed Elodea bifoliata
  • variegated scouringrush Equisetum variegatum
  • veiny dock Rumex venosus
  • veiny meadow-rue Thalictrum venulosum
  • velvetweed Oenothera curtiflora
  • velvety goldenrod Solidago mollis
  • Virginia strawberry Fragaria virginiana
  • warty spurge Euphorbia spathulata
  • water minerslettuce Montia chamissoi
  • water mudwort Limosella aquatica
  • water whorlgrass Catabrosa aquatica
  • wavyleaf thistle Cirsium undulatum
  • western blue virginsbower Clematis occidentalis
  • western poison ivy Toxicodendron rydbergii
  • western tansymustard Descurainia pinnata
  • white heath aster Symphyotrichum ericoides
  • white prairie aster Symphyotrichum falcatum
  • whitest evening primrose Oenothera albicaulis
  • whitestem blazingstar Mentzelia albicaulis
  • wild cucumber Echinocystis lobata
  • witchgrass Panicum capillare
  • wood bluegrass Poa nemoralis
  • woodland draba Draba nemorosa
  • woolly cinquefoil Potentilla hippiana
  • woolly sedge Carex pellita
  • yellow avens Geum aleppicum
Also listed as native and introduced here 5

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.

  • annual ragweedAmbrosia artemisiifolia
  • biennial wormwoodArtemisia biennis
  • claspleaf twistedstalkStreptopus amplexifolius
  • common reedPhragmites australis
  • Kentucky bluegrassPoa pratensis

Compared with Wyoming

The typical county is the median of the 23 Wyoming 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, Johnson County and Wyoming
MeasureJohnson CountyTypical countyStatewide
Native species 542 414 1,060
Garden-ready natives 308 243 576
Tree 38 — 69
Shrub 52 — 89
Wildflower (forb) 314 — 606
Grass or grass-like 120 — 242
Vine 7 — 17
Fern 11 — 37

Neighboring counties

Counties that share a ZIP code with Johnson 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
Johnson County (county FIPS 56019), Wyoming. 542 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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