12 June 2015.
Iowa, United States
Locality: Located in Squaw Creek watershed approximately 4.75 miles northwest of Ames, Story County (private property). T84N R24W NW 1/4 NE 1/4 NE 1/4 Sec. 19 and also extreme NE 1/4 NE 1/4 NE 1/4 Sec. 19 and also extreme NW 1/4 NW 1/4 NW 1/4 Sec. 20.
Coordinates: 42.0779, -93.6794
(Map it)
Elevation: 286m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Growing in wooded area with gentle north-facing slope and also floodplain area in association with Acer negundo, Acer saccharinum, Celtis occidentalis, Lonicera maackia, Polygonatum odoratum, Arisaema triphyllum, Osmorhiza claytonia, Carex spp., Rudbeckia laciniata, Silphium perfoliatum, Urtica dioica, and Smilax sp.
Number of plants sampled: 50
Comment: Scattered population, infrequent abundance.
Collector(s):