Eupatorium maculatum L.
[= Eutrochium maculatum]
Annotated by Bonnie Heidel, 4 Sep 1998.

Montana: Big Horn County: [locality and coordinates withheld; status in Montana: S1S2 (Imperiled; MTNHP)],
Intermittent on woodland and brush margins of midslope spring and seep complex intermittent along app. 1 miles of bench, and spring-fed wooded ravine tributary. Associated with Carex interior, Juncus torreyi, Carex lanuginosa. Aspect east, northeast. Slope: 0-5%. Above Box Canyon in Bighorn Canyon NRA. Plants of Montana¶ Montana Natural Heritage Program¶ TRS info listed in Yellowstone County. Phenology: Fruits.

Bonnie Heidel 1795a, Sep 4, 1998
MONTU, Accession: 123934