United States of America, Oregon, Malheur Co., Owyhee Uplands, Dry Creek basin, 1 mile upstream of Dry Creek at crossing at Crowley Road, 42 air miles southwest of Vale
43.53186 -117.80149 NAD27
1280 meters
4200 ft
Scarce in 30 cm of water in streamside pond; with Carex nebrascensis, Lemna minor