Onespike oatgrass occurs from British Columbia south to California and east to Alberta, Montana, Wyoming, South Dakota, Utah, and Colorado [5,9,17,44].
Onespike oatgrass is present in numerous grassland, sagebrush (Artemisia spp.), mountain brush, quaking aspen (Populus tremuloides)-Douglas-fir (Pseudotsuga menziesii), ponderosa pine (Pinus ponderosa), and lodgepole pine (P. contorta) habitat types and plant communities [27,37,40,44].
Plants commonly growing in association with onespike oatgrass include the following: big sagebrush (A. tridentata), stiff sagebrush (A. rigida), low sagebrush (A. arbuscula), shrubby cinquefoil (Dasiphora floribunda), antelope bitterbrush (Purshia tridentata), common snowberry (Symphoricarpos albus), sticky geranium (Geranium viscosissimum), arrowleaf balsamroot (Balsamorhiza sagittata), western yarrow (Achillea millefolium), lupine (Lupinus spp.), pussytoes (Antennaria spp.), biscuitroot (Lomatium spp.), rough fescue (Festuca altaica), Idaho fescue (F. idahoensis), bluebunch wheatgrass (Pseudoroegneria spicata), needle-and-thread grass (Hesperostipa comata), prairie junegrass (Koeleria macrantha), bottlebrush squirreltail (Elymus elymoides), and Sandberg bluegrass (Poa secunda) [6,22,30,36,45].
Classifications describing plant communities in which onespike oatgrass is a dominant or codominant species are as follows:
Habitat characteristics of the Silver Lake mule deer range [7]
Natural vegetation of Oregon and Washington [11]
Plant associations of the Fremont National Forest [19]
Plant associations of the Wallowa-Snake Province: Wallowa-Whitman National Forest [22]
Related categories for
SPECIES: Danthonia unispicata
| Onespike Oatgrass
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Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research
Station, Fire Sciences Laboratory. Fire Effects Information System
