Ecological Section Listing
| Northwestern Great Plains |  |
| Acer glabrum Drainage Bottom Shrubland Rocky Mountain Maple Drainage Bottom Shrubland |
| Agropyron cristatum - (Pascopyrum smithii, Hesperostipa comata) Semi-natural Herbaceous Vegetati Crested wheatgrass Semi-natural grassland |
| Andropogon gerardii - Schizachyrium scoparium Western Great Plains Herbaceous Vegetation Big bluestem - little bluestem Western Great Plains Herbaceous Vegetation |
| Andropogon hallii - Calamovilfa longifolia Herbaceous Vegetation Sand bluestem - prairie sandreed Sand Prairie |
| Artemisia cana / Hesperostipa comata Shrub Herbaceous Vegetation Silver sagebrush / needle-and-thread Shrub Prairie |
| Artemisia cana / Pascopyrum smithii Shrubland Silver sagebrush / western wheatgrass Shrubland |
| Artemisia cana ssp. cana / Pascopyrum smithii Shrub Herbaceous Vegetation Silver sagebrush / western wheatgrass Shrub Prairie |
| Artemisia longifolia Badlands Sparse Vegetation Longleaf wormwood Badlands Sparse Vegetation |
| Artemisia tridentata / Festuca idahoensis Shrub Herbaceous Vegetation Big sagebrush / Idaho fescue Shrub Prairie |
| Artemisia tridentata ssp. wyomingensis - Atriplex confertifolia Shrubland Wyoming big sagebrush - shadscale Shrubland |
| Artemisia tridentata ssp. wyomingensis / Bouteloua gracilis Shrubland Wyoming big sagebrush / blue grama Shrubland |
| Artemisia tridentata ssp. wyomingensis / Pascopyrum smithii Shrub Herbaceous Vegetation Wyoming big sagebrush / western wheatgrass Shrubland |
| Artemisia tridentata ssp. wyomingensis / Pseudoroegneria spicata Shrub Herbaceous Vegetation Wyoming big sagebrush / bluebunch wheatgrass Shrub Herbaceous Vegetation |
| Artemisia tridentata ssp. wyomingensis / Pseudoroegneria spicata Shrubland Wyoming big sagebrush / bluebunch wheatgrass Shrubland |
| Atriplex gardneri / Pascopyrum smithii Dwarf Shrubland Gardner's saltbush / western wheatgrass Dwarf-shrubland |
| Betula occidentalis / Cornus sericea Shrubland Water birch / red-oiser dogwood Shrubland |
| Betula occidentalis Shrubland Water birch Shrubland |
| Bromus inermis - (Pascopyrum smithii) Semi-natural Herbaceous Vegetation Smooth brome (western wheatgrass) Semi-natural grassland |
| Calamovilfa longifolia - Carex inops ssp. heliophila Herbaceous Vegetation Prairie sandreed - sun sedge Prairie |
| Calamovilfa longifolia - Hesperostipa comata Herbaceous Vegetation Prairie sandreed - needle-and-thread Prairie |
| Carex aquatilis Herbaceous Vegetation Aquatic sedge Wet Meadow |
| Carex nebrascensis Herbaceous Vegetation Nebraska sedge Wet Meadow |
| Crataegus succulenta Shrubland Succulent Hawthorn Shrubland |
| Distichlis spicata - Hordeum jubatum - Puccinellia nuttalliana - Suaeda calceoliformis Herbaceou Inland saltgrass - foxtail barley - Nuttall's alkali grass - seablite Herbaceous Veg |
| Distichlis spicata Herbaceous Vegetation Inland saltgrass Saline Prairie |
| Eleocharis palustris Herbaceous Vegetation Common spikerush Wet Meadow |
| Eriogonum pauciflorum - Gutierrezia sarothrae Badlands Sparse Vegetation Wild buckwheat- snakeweed Badlands Sparse Vegetation |
| Festuca idahoensis - Carex inops ssp. heliophila Herbaceous Vegetation Idaho fescue - sun sedge Mixedgrass Prairie |
| Fraxinus pennsylvanica - Ulmus americana / Prunus virginiana Woodland Green ash - American elm - chokecherry Woody Draw |
| Fraxinus pennsylvanica / Prunus virginiana Forest Green ash / chokecherry Forest |
| Hesperostipa comata - Bouteloua gracilis - Carex filifolia Herbaceous Vegetation Needle-and-thread - blue grama Mixedgrass Prairie |
| Hesperostipa comata - Carex inops ssp. heliophila Herbaceous Vegetation Needle-and-thread - sun sedge Mixedgrass Prairie |
| Hordeum jubatum Herbaceous Vegetation Foxtail barley Meadow |
| Juncus balticus Herbaceous Vegetation Baltic rush wet Meadow |
| Juniperus scopulorum / Piptatherum micranthum Woodland Rocky Mountain juniper / little-seed ricegrass Woodland |
| Juniperus scopulorum / Pseudoroegneria spicata Woodland Rocky Mountain juniper / bluebunch wheatgrass Woodland |
| Krascheninnikovia lanata / Hesperostipa comata Dwarf Shrubland Winter Fat / needle-and-thread Dwarf-shrub Prairie |
| Panicum virgatum Herbaceous Vegetation [Provisional] Switchgrass - (Western Wheatgrass) Herbaceous Vegetation |
| Pascopyrum smithii - Bouteloua gracilis - Carex filifolia Herbaceous Vegetation Western wheatgrass - blue grama - threadleaf sedge Herbaceous Vegetation |
| Pascopyrum smithii - Distichlis spicata Herbaceous Vegetation Western wheatgrass - inland saltgrass Saline Prairie |
| Pascopyrum smithii - Eleocharis spp. Herbaceous Vegetation Western wheatgrass - spikerush spp. Mixedgrass Prairie |
| Pascopyrum smithii - Hesperostipa comata Central Mixedgrass Herbaceous Vegetation Western Wheatgrass - Needle-and-Thread Central Mixedgrass Herbaceous Vegetation |
| Pascopyrum smithii Herbaceous Vegetation Western wheatgrass Mixedgrass Prairie |
| Pascopyrum smithii -Hordeum jubatum Herbaceous Vegetation Western wheatgrass - foxtail barley Saline Prairie |
| Pinus flexilis / Pseudoroegneria spicata Woodland Limber pine / bluebunch wheatgrass Woodland |
| Pinus ponderosa / Carex inops ssp. heliophila Woodland Ponderosa pine / sun sedge Woodland |
| Pinus ponderosa / Crataegus douglasii Woodland Ponderosa pine / black hawthorn Woodland |
| Pinus ponderosa / Juniperus scopulorum Woodland Ponderosa pine / Rocky Mountain juniper Woodland |
| Pinus ponderosa / Prunus virginiana Forest Ponderosa pine / chokecherry Forest |
| Pinus ponderosa / Pseudoroegneria spicata Woodland Ponderosa pine / bluebunch wheatgrass Woodland |
| Pinus ponderosa / Schizachyrium scoparium Woodland Ponderosa pine / little bluestem Woodland |
| Poa pratensis - (Pascopyrum smithii) Semi-natural Herbaceous Vegetation Kentucky bluegrass (western wheatgrass) Semi-natural grassland |
| Polygonum amphibium Herbaceous Vegetation Water smartweed Wetland |
| Populus deltoides - Fraxinus pennsylvanica Forest [Provisional] Plains cottonwood - green ash Forest |
| Populus deltoides / Symphoricarpos occidentalis Woodland Plains cottonwood / western snowberry Woodland |
| Pseudoroegneria spicata - Carex filifolia Herbaceous Vegetation Bluebunch wheatgrass - thread-leaved sedge Mixed Prairie |
| Pseudoroegneria spicata - Pascopyrum smithii Herbaceous Vegetation Bluebunch wheatgrass - western wheatgrass Mixedgrass |
| Pseudoroegneria spicata - Poa secunda Herbaceous Vegetation Bluebunch wheatgrass - Sandberg's bluegrass Mixedgrass |
| Rhus trilobata / Pseudoroegneria spicata Shrub Herbaceous Vegetation skunk bush sumac / bluebunch wheatgrass Shrub Prairie |
| Salicornia rubra Herbaceous Vegetation Red Saltwort Herbaceous Vegetation |
| Salix amygdaloides Woodland Peach-leaf willow Woodland |
| Salix bebbiana Shrubland Bebb's Willow Shrubland |
| Salix exigua Mesic Graminoids Shrubland Sandbar willow / Mesic Graminoid Shrubland |
| Salix exigua Temporarily Flooded Shrubland Sandbar willow Shrubland |
| Sandstone Great Plains xeric butte - Bluff Sparse Vegetation Great Plains Xeric Sandstone Butte |
| Sarcobatus vermiculatus / Pascopyrum smithii Shrub Herbaceous Vegetation Black greasewood / western wheatgrass - (thickspike wheatgrass) Shrub Prairie |
| Schizachyrium scoparium - Bouteloua (curtipendula, gracilis) / Carex filifolia Herbaceous Vegeta Northern Great Plains little bluestem Prairie |
| Scirpus pungens Herbaceous Vegetation Threesquare Wet Meadow |
| Scirpus tabernaemontani Temperate Herbaceous Vegetation Softstem bulrush Temperate Herbaceous Vegetation |
| Spartina pectinata - Carex spp. Herbaceous Vegetation Prairie Cordgrass - Sedge Wet Meadow |
| Spartina pectinata - Scirpus pungens Herbaceous Vegetation Prairie cordgrass - bulrush Wet Meadow |
| Spartina pectinata western Herbaceous Vegetation Prairie Cordgrass Western Herbaceous Vegetation |
| Sporobolus airoides Herbaceous Vegetation Alkali sacaton Southern Plains grassland |
| Sporobolus airoides Northern Plains Herbaceous Vegetation Alkali Sacaton Northern Plains Herbaceous Vegetation |
| Symphoricarpos occidentalis Shrubland Western snowberry Shrubland |
| Yucca glauca / Calamovilfa longifolia Shrub Herbaceous Vegetation Yucca / prairie sandreed Shrub Prairie |
