United States, Colorado, Las Animas, Mesa de Maya Region, along Carrizo Creek near Troy.
37.13711 -103.33386 +-5000m. WGS84
Plotted point along Carrizo Creek nearest to Troy Cemetery (and S of this and the estimated location of Troy), as marked on TOPO. Increased uncertainty to 5km to cover general area since actual point of Troy is not known, only estimated. MS; Georeferenced
Moist soil along Carrizo Creek.
Originally identified as B. pusilla (Nutt.) Fernald.