Euphorbia agraria Bieb.
Annotated by Stacey Barta, 8 Aug 2002. Remarks: Euphorbia glyptosperma became a jr synonym of Chamaesyce glyptosperma

Montana: Sweet Grass County: Melville; 8 miles west.
46.1030055° N, 109.953797° W
Coordinate Source: USGS-website.
Urban Spurge. Exotic species. Large, well-established infestation in dry shortgrass prairie rangeland, with some dryland grass and hay. University of Montana Herbarium Invaders Database Project. Phenology: Flowers and Fruits.

Stacey Barta s.n., Aug 8, 2002
MONTU, Accession: 129387