Plant species of concern and plant associations of Powder River county, Montana E1C3380F-9100-4DF5-BBE8-6E6321664192 Year: 2002 Distribution: This species is widespread in tlie Figure 22, Habitat oiDichanthehum oligoscatthes var. scribnerianum within \Ug Fi/ttispo/t^erosa /Mahonia repem habitat type, comprised of silty ecological sites with fine sandy loams and loams. The associated species include bluebunch wheatgrass {Pseudoroegneriaspicata). Sprengel's sedge (Carex sprengeUii), Dewey's sedge {Carex de^veycuid). and field milkvetch (Astragalus agrestis). DichaiHhedhniti oligosanthes has
Plant species of concern and plant associations of Powder River county, Montana E1C3380F-9100-4DF5-BBE8-6E6321664192 Year: 2002 Distribution: This species is widespread in tlie Figure 22, Habitat oiDichanthehum oligoscatthes var. scribnerianum within \Ug Fi/ttispo/t^erosa /Mahonia repem habitat type, comprised of silty ecological sites with fine sandy loams and loams. The associated species include bluebunch wheatgrass {Pseudoroegneriaspicata). Sprengel's sedge (Carex sprengeUii), Dewey's sedge {Carex de^veycuid). and field milkvetch (Astragalus agrestis). DichaiHhedhniti oligosanthes has two gi'owtli foniis in different times of the growing season, requiring partial or direct sunlight throughout tlie season. In Powder River County, it has only been found in four places on tlie Ashland Dishict of Custer National Forest. There are few pine stands represented on BLM lands in die study area. Of tlie few tliat were visited in tlie course of this siu'vey, none appeared to have suitable microhabitat. No additional data were collected on this species and its distribution. Other: This species occupies open pine woodland that may be affected by vegetation encroachment and by grazing, particularly early in tlie growing Appendix C-9
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