12 October 2015.
Wyoming, United States
Locality: south side of I-80, just east of exit 201 west of Rawlins, Carbon county
Coordinates: 41.7743, -107.4589
(Map it)
Elevation: 2040m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Grassland and shrubland on in roadside ditch and swale with Polygonum.
Comment: pop size 1000; plants up to 1.0 m tall
Collector(s):