Euphorbia marginata Pursh
Annotated by Klaus H. Lackschewitz, 29 Sep 1979. Remarks: Euphorbia glyptosperma became a jr synonym of Chamaesyce glyptosperma

Montana: Richland County: Poplar; Along road from Hwy 201 North and West, SE of town.
48° 2" N, 104° 59' 46" W
Coordinate Source: Specimen Label.
On a high ridge of the badlands. Showing bearpaw black shale in the upper strata. Location not exact.¶Flora of the Fort Union Basin. Phenology: Flowers and Fruits.

Klaus H. Lackschewitz 9292, Sep 29, 1979
MONTU, Accession: 83298