29 August 2017.
Nebraska, United States
Locality: Areas on both north and south sides of the Niobrara River between Long Pine and Springview, T32N R21W; T32N R20W; and T31N R21W in Brown and Keya Paha Counties.
Coordinates: 42.7572, -99.7466
(Map it)
Elevation: 685m.
Georeference protocol: Lat/lon determined by GPS
Habitat: Wild Habitat
Environment description: Dry, rocky ridgetops.
Number of plants sampled: 10
Associated species: Growing in association with Fraxinus pennsylvanica, Populus deltoides, Quercus macrocarpa, Rhus glabra, Prunus americana, Prunus virginiana, Echinacea angustifolia, Dalea sp., and Oputnia sp.
Comment: Coordinates refer to central locality of population sampled. Coordinates for each mother tree sampled can be provided upon request.
Collector(s):