Theodore Roosevelt National Park Plants

This flora list represents 102 of the more common plants found in Theodore Roosevelt National Park. Over 400 plants have been located and identified within the park and it is estimated that perhaps as many as 500 different species exist. Please respect other park visitors as well as wildlife when viewing wildflowers. Picking or collecting plants is prohibited. Plants listed can be found in one or all three units of the park. Common names shown are those used in this region. Scientific names follow the convention used in Flora of the Great Plains published in 1986 by University Press of Kansas unless later accepted changes have been made. Flowering date represents the best period of time to see the plant in bloom under normal conditions. Dates could be altered by weather. Space permits listing only primary habitat.

Grasses Common Name Scientific Name Family Habitat Big sandgrass Calamovilfa longifolia Grass Sandy setting Blue grama Bouteloua Grass Prairie Buffalo grass Buchloe dactyloides Grass Uplands Canada wild rye Elymus canadensis Grass Riverbottom/channels Crested wheatgrass Agropyron cristatum Grass Roadsides Foxtail barley Hordeum jubatum Grass Alkaline settings Green needlegrass Stipa viridula Grass Prairie Junegrass Koeleria pyramidata Grass Prairie Kentucky bluegrass Poa pratensis Grass Campground Little bluestem Andropogon scoparius Grass Ridge slopes Needle-and-thread Stipa comata Grass Prairie Threadleaf sedge Carex filifolia Sedge Prairie uplands Saltgrass Distichlis spicata stricta Grass Alkaline settings Sideoats grama Bouteloua curtipendula Grass Ridge slopes Smooth brome Bromus inermis Grass Roadsides Western wheatgrass Agropyron smithii Grass Uplands (state grass) Shrubs Flowering Flower Common Name Scientific Name Family Time Color Big sage/ Three-toothed sage Artemisia tridentata Aster Buckbrush/Wolfberry Symphoricarpos occidentalis Honeysuckle June-July White Buffaloberry/Bullberry Shepherdia argentea Oleaster Choke cherry Prunus virginiana Rose May-June White Common/Shrub juniper/ cedar Juniperus communis Cypress Creeping juniper/cedar Juniperus horizontalis Cypress Skunkbush/Fragrant sumac Rhus aromatica Cashew May-June Yellow Golden/Buffalo currant Ribes odoratum Currant May Yellow Greasewood Sarcobatus vermiculatus Goosefoot Juneberry/Saskatoon Amelanchier alnifolia Rose Poison ivy Toxicodendron rydbergii Cashew Prairie rose (state flower) Rosa arkansana Rose June-July Pink Rabbitbrush Chrysothamnus nauseosus Aster Aug-Sept Yellow Sandbar willow Salix interior Willow Shrubby cinquefoil/ Potentilla Potentilla fruiticosa Rose June-Aug Yellow Silver sage Artemisia cana Aster Spiny saltbush Atriplex confertiflora Goosefoot Wild plum Prunus americana Rose May White Winterfat Ceratoides lanata Goosefoot Wood's rose Rosa woodsii Rose June Pink Trees Common Name Scientific Name Family Habitat American elm Ulmus americana Elm Riverbottom, draws Box elder Acer negundo Maple Riverbottom Cottonwood Populus deltoides Willow Riverbottom Green ash Fraxinus pennsylvanica Olive Draws, riverbottom Rocky Mountain juniper/cedar Juniperus scopulorum Cypress North-facing slopes Herbs Flower Common Name Scientific Name Family Color Aromatic aster Aster oblongifolius Aster Purple Bastard toadflax Comandra umbellata Sandalwood White Bergamot/Beebalm Monarda fistulosa Mint Pink Blazing star/ Dotted gayfeather Liatris aspera Aster Purple Blue wild lettuce Lactuca oblongifolia Aster Purple Snakeweed Gutierrezia sarothrae Aster Yellow Butte candle Cryptantha celosioides Borage White Common sunflower Helianthus annuus Aster Yellow Crested beardtongue Penstemon eriantherus Figwort Purple Curlycup gumweed Grindelia squarrosa Aster Yellow False Solomon's seal Smilacina stellata Lily White Fetid marigold Dyssodia papposa Aster Yellow Field bindweed Convolvulus sepium Morning Glory White Fringed sage Artemisia frigida Aster Yellowish Goat's beard/ Western salsify Tragopogon dubius Aster Yellow Golden aster Chrysopsis villosa Aster Yellow Golden pea Thermopsis rhombifolia Pea Yellow Goldenrod Solidago spp. Aster Yellow Ground plum Astragalus crassicarpus Bean Pink Gumbo lily Oenothera caespitosa Primrose White Harebell Campanula rotundifolia Bellflower Purple Henbane Hyoscamus niger Potato Greenish Indian breadroot/ Tipsin Psoralea esculenta Pea Purple Indian paintbrush Castilleja sessiliflora Figwort Yellow Large-flowered dock Rumex venosus Buckwheat Pink Leafy spurge Euphorbia esula Spurge Greenish Leopard lily Fritillaria atropurpurea Lily Purple Moss phlox Phlox hoodii Phlox White Northern bedstraw Galium boreale Madder White Pincushion cactus Coryphantha vivipara Cactus Red Prickly pear cactus Opuntia polyacantha Cactus Yellow Prince's plume Stanleya pinnata Mustard Yellow Purple coneflower Echinacea augustifolia Aster Purple Purple locoweed Oxytropis lambertii Pea Purple Purple prairie clover Dalea purpurea Pea Purple Pussytoes Antennaria spp. Aster White Scarlet/ Red globe mallow Sphaeralcea coccinea Mallow Red Rocky Mountain bee plant Cleome serrulata Caper Pink Scoria lily/ Evening star Mentzelia decapetala Stickleaf White Sago/Mariposa lily Calochortus nuttallii Lily White Scarlet gaura Gaura coccinea Primrose White/red Showy milkweed Asclepias speciosa Milkweed Pink Silver-leaf scurf pea Psoralea argophylla Pea Purple Skeletonweed Lygodesmia juncea Aster Pink Spreading dogbane Apocynum androsaemifolium Dogbane White Stiff sunflower Helianthus rigidus Aster Yellow Tumbling mustard Sisymbrium altissimum Mustard Yellow Wavy-leaf thistle Circium undulatum Aster Purple Western virgin's bower Clematis ligusticifolia Buttercup White Western wallflower Erysimum asperum Mustard Yellow White beardtongue/ penstemon Penstemon albidus Figwort White White sage Artemisia ludoviciana Aster White sweet clover Melilotus alba Pea White White wild onion/Prairie onion Allium textile Lily White Whorled milkweed Asclepias verticillata Milkweed White Crocus/Pasque flower Anemone patens Buttercup Purple Wild licorice Glycyrrhiza lepidota Pea Yell/white Wooly plantain Plantago patagonica Plaintain Yarrow Achillea millefolium Aster White Yellow buckwheat/ umbrella plant Eriogonum flavum Buckwheat Yellow Yucca Yucca glauca Lily White

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