Wyoming Rare Plant Field Guide

Species by Vegetation Type

Vegetation Types

Alpine Aspen Woodlands Barren Slopes and Ridges Bogs

Cushion Plant Communities Desert Grasslands Desert Shrublands Disturbed Sites

Forest Meadows and Clearings Juniper Woodlands Lake and Pond Shores Lodgepole Pine Forests

Mountain Brush Mountain Meadows Paper Birch Forest Playas

Riparian Areas Rock Crevices and Ledges Sagebrush Grasslands Scrub Oak Woodlands

Shortgrass Prairie Subalpine Fir/Engelmann Spruce Forests Talus Thermal Areas

Wet Meadows White Spruce Forest Willow Thickets

Alpine

Seaside Sedge -- Carex incurviformis
Rockcress Draba -- Draba densifolia var. apiculata
Comb-Hair Whitlow-Grass -- Draba pectinipila
Wooly Fleabane -- Erigeron lanatus
Kirkpatrick's Ipomopsis -- Ipomopsis spicata ssp. robruthii
Naked-Stemmed Parrya -- Parrya nudicaulis
Weber's Saw-Wort -- Saussurea weberi

Aspen Woodlands

Soft Aster -- Aster mollis

Barren Slopes and Ridges

Bastard Draba Milkvetch -- Astragalus drabelliformis
Dubois Milkvetch -- Astragalus gilviflorus var. purpureus
Hyattville Milkvetch -- Astragalus jejunus var. articulatus
Starveling Milkvetch -- Astragalus jejunus var. jejunus
Cedar Rim Thistle -- Cirsium aridum
Owl Creek Miner's Candle -- Cryptantha subcapitata
Narrowleaf Goldenweed -- Haplopappus macronema var. linearis
Sidesaddle Bladderpod -- Lesquerella arenosa var. argillosa
Large-Friuted Bladderpod -- Lesquerella macrocarpa
Colorado Tansy-Aster -- Machaeranthera coloradoensis
Gibben's Beardtongue -- Penstemon gibbensii
Opal Phlox -- Phlox opalensis
Beaver Rim Phlox -- Phlox pungens
Tufted Twinpod -- Physaria condensata
Creeping Twinpod -- Physaria integrifolia var. monticola
Rocky Mountain Twinpod -- Physaria saximontana var saximontana
Green River Greenthread -- Thelesperma caespitosum
Uinta Greenthread -- Thelesperma pubescens
North Fork Easter Daisy -- Townsendia condensata var. anomala
Cedar Mountain Easter Daisy -- Townsendia microcephala
Desert Yellowhead -- Yermo xanthocephalus

Bogs

Round-leaved Orchid -- Amerorchis rotundifolia
Livid Sedge -- Carex livida
Marsh Muhly -- Muhlenbergia glomerata
Greenland Primrose -- Primula egaliksensis
Myrtleleaf Willow -- Salix myrtillifolia var. myrtillifolia
Autumn Willow -- Salix serissima
Rolland's Bulrush -- Scirpus rollandii

Cushion Plant Communities

Bastard Draba Milkvetch -- Astragalus drabelliformis
Dubois Milkvetch -- Astragalus gilviflorus var. purpureus
Hyattville Milkvetch -- Astragalus jejunus var. articulatus
Precocious Milkvetch -- Astragalus proimanthus
Owl Creek Miner's Candle -- Cryptantha subcapitata
Keeled Bladderpod -- Lesquerella carinata var. carinata
Fremont Bladderpod -- Lesquerella fremontii
Payson's Bladderpod -- Lesquerella paysonii
Alpine Feverfew -- Parthenium alpinum
Stemless Beardtongue -- Penstemon acaulis var. acaulis
Opal Phlox -- Phlox opalensis
Beaver Rim Phlox -- Phlox pungens
Laramie False Sagebrush -- Sphaeromeria simplex
North Fork Easter Daisy -- Townsendia condensata var. anomala
Cedar Mountain Easter Daisy -- Townsendia microcephala

Desert Grasslands

Dwarf Milkweed -- Asclepias uncialis
Contracted Indian Ricegrass -- Oryzopsis contracta

Desert Shrublands

Mystery Wormwood -- Artemisia biennis var. diffusa
Porter's Sagebrush -- Artemisia porteri
Dorn's Twinpod -- Physaria dornii

Disturbed Sites

Bastard Draba Milkvetch -- Astragalus drabelliformis
Payson's Milkvetch -- Astragalus paysonii
Sidesaddle Bladderpod -- Lesquerella arenosa var. argillosa
Contracted Indian Ricegrass -- Oryzopsis contracta

Forest Meadows and Clearings

Northern Arnica -- Arnica lonchophylla
Prairie Moonwort -- Botrychium campestre
Hall's Fescue -- Festuca hallii
Weber's Scarlet-Gilia -- Ipomopsis aggregata spp. weberi
Cary's Beardtongue -- Penstemon caryi

Juniper Woodlands

Ownbey's Thistle -- Cirsium ownbeyi
Rabbit Buckwheat -- Eriogonum brevicaule var. canum
Cary's Beardtongue -- Penstemon caryi

Lake and Pond Shores

Yellowstone Sand Verbena -- Abronia ammophila
Many-Stemmed Spider-Flower -- Cleome multicaulis
Narrowleaf Goldenweed -- Haplopappus macronema var. linearis
Marsh Muhly -- Muhlenbergia glomerata
Persistent Sepal Yellowcress -- Rorippa calycina
Ute Lady's Tresses -- Spiranthes diluvialis

Lodgepole Pine Forests

Payson's Milkvetch -- Astragalus paysonii
Clustered Lady's Slipper -- Cypripedium fasciculatum

Mountain Brush

Sweet-flowered Rock Jasmine -- Androsace chamaejasme var. carinata

Mountain Meadows

Soft Aster -- Aster mollis
Hall's Fescue -- Festuca hallii
Colorado Tansy-Aster -- Machaeranthera coloradoensis
Absaroka Goldenweed -- Pyrrocoma carthamoides var. subsquarrosus

Paper Birch Forest

American Trailplant -- Adenocaulon bicolor
Trailing Clubmoss -- Lycopodium complanatum
Treelike Clubmoss -- Lycopodium dendroideum

Playas

Mystery Wormwood -- Artemisia biennis var. diffusa

Riparian Areas

Meadow Pussytoes -- Antennaria arcuata
Black and Purple Sedge -- Carex luzulina var. atropurpurea
Ownbey's Thistle -- Cirsium ownbeyi
Mountain Lady's Slipper -- Cypripedium montanum
Boreal Draba -- Draba borealis
Giant Helleborine -- Epipactis gigantea
Dwarf Scouring Rush -- Equisetum scirpoides
Colorado Butterfly Plant -- Gaura neomexicana ssp. coloradensis
Marsh Muhly -- Muhlenbergia glomerata
Greenland Primrose -- Primula egaliksensis
Persistent Sepal Yellowcress -- Rorippa calycina
Northern Blackberry -- Rubus arcticus ssp. acaulis
Myrtleleaf Willow -- Salix myrtillifolia var. myrtillifolia
Autumn Willow -- Salix serissima
Cottongrass Bulrush -- Scirpus cyperinus
Pale Blue-Eyed Grass -- Sisyrinchium pallidum
Ute Lady's Tresses -- Spiranthes diluvialis
Hapeman's Sullivantia -- Sullivantia hapemanii var. hapemanii

Rock Crevices and Ledges

Larimer Aletes -- Aletes humilis
Sweet-flowered Rock Jasmine -- Androsace chamaejasme var. carinata
Laramie Columbine -- Aquilegia laramiensis
Small Rock Cress -- Arabis pusilla
Williams' Waferparsnip -- Cymopterus williamsii
Wyoming Tansymustard -- Descurainia torulosa
Boreal Draba -- Draba borealis
Comb-Hair Whitlow-Grass -- Draba pectinipila
Rabbit Buckwheat -- Eriogonum brevicaule var. canum
Kirkpatrick's Ipomopsis -- Ipomopsis spicata ssp. robruthii
Fremont Bladderpod -- Lesquerella fremontii
Colorado Tansy-Aster -- Machaeranthera coloradoensis
Cary's Beardtongue -- Penstemon caryi
Shoshonea -- Shoshonea pulvinata
Laramie False Sagebrush -- Sphaeromeria simplex
Hapeman's Sullivantia -- Sullivantia hapemanii var. hapemanii
Barneby's Clover -- Trifolium barnebyi

Sagebrush Grasslands

Soft Aster -- Aster mollis
Bastard Draba Milkvetch -- Astragalus drabelliformis
Ownbey's Thistle -- Cirsium ownbeyi
Contracted Indian Ricegrass -- Oryzopsis contracta
Cary's Beardtongue -- Penstemon caryi

Scrub Oak Woodlands

Weber's Scarlet-Gilia -- Ipomopsis aggregata spp. weberi

Shortgrass Prairie

Dwarf Milkweed -- Asclepias uncialis

Subalpine Fir/Engelmann Spruce Forests

Clustered Lady's Slipper -- Cypripedium fasciculatum
Dwarf Scouring Rush -- Equisetum scirpoides

Talus

Rockcress Draba -- Draba densifolia var. apiculata
Wooly Fleabane -- Erigeron lanatus
Kirkpatrick's Ipomopsis -- Ipomopsis spicata ssp. robruthii
Naked-Stemmed Parrya -- Parrya nudicaulis
Weber's Saw-Wort -- Saussurea weberi
Shoshonea -- Shoshonea pulvinata

Thermal Areas

Ross' Bentgrass -- Agrostis rossiae
Giant Helleborine -- Epipactis gigantea

Wet Meadows

Pink Agoseris -- Agoseris lackschewitzii
Meadow Milkvetch -- Astragalus diversifolius var. diversifolius
Meadow Pussytoes -- Antennaria arcuata
Upward-lobe Moonwort -- Botrychium ascendens
Foxtail Sedge -- Carex alopecoidea
Black and Purple Sedge -- Carex luzulina var. atropurpurea
Giant Helleborine -- Epipactis gigantea
Northern Blackberry -- Rubus arcticus ssp. acaulis
Pale Blue-Eyed Grass -- Sisyrinchium pallidum
Ute Lady's Tresses -- Spiranthes diluvialis

White Spruce Forest

Round-leaved Orchid -- Amerorchis rotundifolia
Red Manzanita -- Arctostaphylos rubra
Dwarf Scouring Rush -- Equisetum scirpoides
Trailing Clubmoss -- Lycopodium complanatum
Treelike Clubmoss -- Lycopodium dendroideum
Myrtleleaf Willow -- Salix myrtillifolia var. myrtillifolia

Willow Thickets

Upward-lobe Moonwort -- Botrychium ascendens
Foxtail Sedge -- Carex alopecoidea
Colorado Butterfly Plant -- Gaura neomexicana ssp. coloradensis
Northern Blackberry -- Rubus arcticus ssp. acaulis
Autumn Willow -- Salix serissima

Previous Section -- Other Agencies - Rare Plants on Wyoming State Lands
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Next Section -- Species by Soil Type

Alpine	Aspen Woodlands	Barren Slopes and Ridges	Bogs
Cushion Plant Communities	Desert Grasslands	Desert Shrublands	Disturbed Sites
Forest Meadows and Clearings	Juniper Woodlands	Lake and Pond Shores	Lodgepole Pine Forests
Mountain Brush	Mountain Meadows	Paper Birch Forest	Playas
Riparian Areas	Rock Crevices and Ledges	Sagebrush Grasslands	Scrub Oak Woodlands
Shortgrass Prairie	Subalpine Fir/Engelmann Spruce Forests	Talus	Thermal Areas
Wet Meadows	White Spruce Forest	Willow Thickets