13 September 1989.
Wisconsin, United States
Locality: 9.6km southwest of Minong, Hwy. 77E and County Road K (North), Washburn County.
Coordinates: 46.0333, -91.9167
(Map it)
Environment description: Population scattered over 120 m, along roadside ditch, on edge of birch woods, near low swampy area.
Collector(s): - Dozet, Branislov, Institute of Field & Vegetable Crops
- Gavrilova, Vera, N.I. Vavilov All - Union Scientific Research
- Pomeroy, Jeff, USDA, ARS
- Seiler, Gerald, USDA, ARS