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Wildflowers Common to Devils Tower

Hollis Marriott 1995

The following list includes wildflowers that are commonly seen along the trails and around developed areas of Devils Tower National Monument. Blooming periods are approximate. These are the months that you are likely to see the species in bloom during years of average precipitation and temperatures.

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 YELLOW

CARROT FAMILY (Apiaceae)

• Biscuitroot Lomatium foeniculaceum Ap My

SUNFLOWER FAMILY (Asteraceae)

• Arnica Arnica fulgens A. sororia My Jn
• Arrowleaf Balsamroot Balsamorhiza sagittata My Jn
• Gumweed Grindelia squarrosa Jl Sp
• Sunflower Helianthus spp. Jl Sp
• Golden Aster Heterotheca villosa Jn Ag
• Cutleaf Hymenopappus filifolius My Jl
• Stemless Hymenoxys Hymenoxys acaulis My Jn
• False Dandelion Microseris nutans My Jn
• Yellow Coneflower Ratibida columnifera Jn Ag
• Groundsel Senecio spp. Jn Jl
• Goldenrod Solidago spp. Jl Sp
• Dandelion Taraxacum spp. Ap Sp
• Meadow Salsify Tragopogon dubius My Sp

BARBERRY FAMILY (Berberidaceae)

• Oregon Grape Mahonia repens Ap My

MUSTARD FAMILY (Brassicaceae)

• Wallflower Erysimum asperum My Ag
• Bladderpod Lesquerella alpina My Jn
• Watercress Rorippa spp. Jl Ag

CACTUS FAMILY (Cactaceae)

• Missouri Pincushion Coryphantha missouriensis My Jn
• Brittle Prickly Pear Opuntia fragilis Jn
• Plains Prickly Pear O. polyacantha Jn

HEATH FAMILY (Ericaceae)

• Pinedrops Pterospora andromedea Jn Jl

PEA FAMILY (Fabaceae)

• Yellow Sweet Clover Melilotus officinalis My Sp
• Prairie Goldenpea Thermopsis rhombifolia Ap My

FUMITORY FAMILY (Fumiariaceae)

• Golden Corydalis Corydalis aurea Ap Jn

FLAX FAMILY (Linaceae)

• Yellow Flax Linum australe, L. rigidum My Ag

EVENING PRIMROSE FAMILY (Onagraceae)

• Evening Primrose Oenothera spp. Jl

OXALIS FAMILY (Oxalidaceae)

• Wood-sorrel Oxalis spp. Jn Ag

BUCKWHEAT FAMILY (Polygonaceae)

• Yellow Buckwheat Eriogonum flavum Jn Jl

BUTTERCUP FAMILY (Ranunculaceae)

• Buttercup Ranunculus spp. Jn Ag
• Sagebrush Buttercup R. glaberrimus Mr Ap

ROSE FAMILY (Rosaceae)

• Yellow Avens Geum spp. Ag
• Cinquefoil Potentilla spp. My Jl

SAXIFRAGE FAMILY (Saxifragaceae)

• Alumroot Heuchera richardsonii Jn Jl

SNAPDRAGON FAMILY (Scrophulariaceae)

• Goldtongue Orthocarpus luteus Jl Ag
• Mullein Verbascum thapsus Jn Ag

VIOLET FAMILY (Violaceae)

• Yellow Violet Viola spp. Ap My

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WHITE

CARROT FAMILY (Apiaceae)

Mountain Waterparsnip Cymopterus montanus Ap My Biscuitroot Lomatium orientale Mr Ap

MILKWEED FAMILY (Asclepiadaceae)

• Dwarf Milkweed Asclepias pumila Jn Ag
• Green Milkweed A. viridiflora Jn Jl

SUNFLOWER FAMILY (Asteraceae)

• Western Yarrow Achillaea millifolium My Sp
• Pussytoes Antennaria spp. My Jn
• White Aster Aster falcatus Ag Sp
• Fleabane Erigeron canus My Jl

BORAGE FAMILY (Boraginaceae)

• Miner's Candle Cryptantha celosioides My Jn

MUSTARD FAMILY (Brassicaeae)

• Penny Cress Thlapsi arvense Ap Ag

PINK FAMILY (Caryophyllaceae)

• Chickweed Cerastium arvense Jn Ag

MORNING GLORY FAMILY (Convolvulaceae)

• Field Bindweed Convolvulus arvensis My Sp

PEA FAMILY (Fabaceae)

• Groundplum Astragalus crassicarpus Ap My
• Locoweed A. gilviflorus, A. purshii Ap My
• Wild Licorice Glycyrrhiza lepidota Jl
• White Sweet Clover Melilotus alba Jn Sp
• Crazyweed Oxytropis campestris Ap Jn
• White Prairieclover Petalostemon occidentale Jl
• White Clover Trifolium repens Jn Ag

LOASA FAMILY (Loasaceae)

• Ten Petal Blazing Star Mentzelia decapetala Jl Sp

EVENING PRIMROSE FAMILY (Onagraceae)

• Evening Primrose Oenothera spp. Ap Jl

PHLOX FAMILY (Polemoniaceae)

• Ball-headed Gila Ipomopsis congesta Ap Jn
• White Phlox Phlox hoodii Mr My

MILKWORT FAMILY (Polygalaceae)

• Milkwort Polygala alba Jn Jl

BUCKWHEAT FAMILY (Polygonaceae)

• Wild Buckwheat Eriogonum pauciflorum Jl Sp

BUTTERCUP FAMILY (Ranunculaceae)

• Virgin's Bower Clematis ligusticifolia Jl Ag
• Water Buttercup Ranunculus circinatus Jn

ROSE FAMILY (Rosaceae)

• Wild Strawberry Fragaria virginiana My Jn

SAXIFRAGE FAMILY (Saxifragaceae)

• Woodland Star Lithophragma parviflorum My Jn

SNAPDRAGON FAMILY (Scrophulariaceae)

• White Beardtongue Penstemon albidus Jn

VIOLET FAMILY (Violaceae)

• Canadian Violet Viola canadensis My Jn

LILY FAMILY (Liliaceae)

• Wild Onion Allium textile My Jn
• Sego Lily Calochortus spp. Jn Jl
• Fairy Bell Disporum trachycarpum My
• Sand Lily Leucocrinum montanum Ap My
• False Solomon's Seal Smilacina stellata My Jn
• Deathcamas Zigadenus venosus Ap Jn

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BLUE and PURPLE

SUNFLOWER FAMILY (Asteraceae)

• Purple Aster Aster spp. Ag Sp

FORGET-ME-NOT FAMILY (Boraginaceae)

• Stickseed Hackelia deflexa Jn Jl
• Bluebell Mertensia lanceolata Ap My

MUSTARD FAMILY (Brassicaceae)

• Purple Mustard Chorispora tenella Ap My
• Dames Rocket Hesperis matronalis My Jn

BELLFLOWER FAMILY (Campanulaceae)

• Harebell Campanula rotundifolia Jn Sp

CAPER FAMILY (Capparaceae)

• Rocky Mountain Bee Plant Cleome serrulata Jl Sp

PEA FAMILY (Fabaceae)

• Locoweed Astragalus spp. My Jl
• Alpine Lupinus argenteus My Jn
• Alfalfa Medicago sativa Jn Jl
• Crazyweed Oxytropis spp. My Jn
• Purple Prairie Clover Petalostemon purpureum Jl Ag
• Silverleaf Scurf-pea Psoralea argophylla Jn Jl
• Indian Breadroot P. esculenta My Jn
• Vetch Vicia americana My Jl

WATERLEAF FAMILY (Hydrophyllaceae)

• Purple Fringe Phacelia linearis My Jl

MINT FAMILY (Lamiaceae)

• Field Mint Mentha arvensis Jn Sp

FLAX FAMILY (Linaceae)

• Blue Flax Linum lewisii My Jl

BUTTERCUP FAMILY (Ranunculaceae)

• Pasque Flower Anemone patens Ap
• Larkspur Delphinium bicolor Ap My

SNAPDRAGON FAMILY (Scrophulariaceae)

• Blue-eyed Mary Collinsia parviflora Ap Jn
• Beardtongue Penstemon spp. My Jn
• Giant Penstemon P. grandiflorus Jn

VERVAIN FAMILY (Verbenaceae)

• Vervain Verbena stricta Jn Sp

VIOLET FAMILY (Violaceae)

• Violet Viola adunca My
• Prairie Violet V. pedatifida My

SPIDERWORT FAMILY (Commelinaceae)

• Spiderwort Tradescantia occidentalis Jn

IRIS FAMILY (Iridaceae)

• Blue-eyed Grass Sisyrinchium montanum My Jn

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RED, PINK, and ROSE

MILKWEED FAMILY (Asclepiadaceae)

• Showy Milkweed Asclepias speciosa Jn Jl

SUNFLOWER FAMILY (Asteraceae)

• Burdock Arctium minus Jl Ag
• Musk Thistle Carduus nutans Jn Ag
• Canada Thistle Cirsium arvense Jn Ag
• Wavy-leaf Thistle C. undulatum Jn Ag
• Purple Coneflower Echinacea pallida Jn Jl
• Gayfeather Liatris punctata Jl Sp
• Skeletonweed Lygodesmia juncea Jn Sp
• Easter Daisy Townsendia exscapa Mr My

MUSTARD FAMILY (Brassicaeae)

• Dames Rocket Hesperis matronalis My Jn

PEA FAMILY (Fabaceae)

• Crazyweed Oxytropis spp. My Jn

MINT FAMILY (Lamiaceae)

• Horsemint Monarda fistulosa Jl Ag

MALLOW FAMILY (Malvaceae)

• Scarlet Globemallow Sphaeralcea coccinea My Jl

EVENING PRIMROSE FAMILY (Onagraceae)

• Scarlet Gaura Gaura coccinea My Ag

PHLOX FAMILY (Polemoniaceae)

• Pink Phlox Phlox alyssifolia Ap My

BUCKWHEAT FAMILY (Polygonaceae)

• Sand Dock Rumex venosus My

PRIMROSE FAMILY (Primulaceae)

• Shooting Star Dodecatheon pulchellum Ap My

ROSE FAMILY (Rosaceae)

• Prairie Smoke Geum triflorum My
• Prairie Rose Rosa arkansana Jn Jl

SNAPDRAGON FAMILY (Scrophulariaceae)

• Downy Painted Cup Castilleja sessiliflora My Jn

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GREEN or INCONSPICUOUS

SUNFLOWER FAMILY (Asteraceae)

• Western Mugwort Artemisia ludoviciana Ag Sp

SPURGE FAMILY (Euphorbiaceae)

• Leafy Spurge Euphorbia esula My Sp

PLANTAIN FAMILY (Plantaginaceae)

• Plantain Plantago major Jn Ag

SNAPDRAGON FAMILY (Scrophulariaceae)

• Kittentail Besseya wyomingensis Ap My

NETTLE FAMILY (Urticaceae)

• Stinging Nettle Urtica dioica Jl