23 September 1989.
Indiana, United States
Locality: Hwy. 246W, 3.2km west of Martz, Clay County.
Coordinates: 39.2333, -87.1333
(Map it)
Environment description: Drainage ditch along edge of soybean field, edge of small stream, extending for about a km along bank of stream.
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