22 June 2017.
Iowa, United States
Locality: Along Raccoon River Valley Bike Trail (railroad right-of-way) 0.25 miles northwest of 260th street approximately 2 miles southeast of Dallas Center, T79N R27W SW 1/4 NW 1/4 SE 1/4 and SW 1/4 SE 1/4 Sec. 12.
Coordinates: 41.6616, -93.9389
(Map it)
Elevation: 287m.
Georeference protocol: Lat/Lon determined via Map location
Habitat: Wild Habitat
Environment description: Abondoned railroad right-of-way remnant. Growing in association with Bromus inermis, Ambrosia trifida, Pycnanthemum virginiana, Zizia aurea, Melilotus officinalis, Equisetum arvense, Asclepias syriaca, Spartina pectinata, Fragaria virginiana, Poa pratensis, and Pastinaca sativia.
Number of plants sampled: 100
Slope: 0
Comment: Peak bloom occurred on 30 May 2017. Noted two areas of plants measuring 8 yards x 15 yards and 8 yards x 30 yards with approximately 200 plants total noted. On 19 June 2017, noted 20% of plants still in flower while the rest were done flowering.
Collector(s):