]> GH barcode-01919329 United States of America New Mexico T. M. O'Connor Ranch South Rim Pasture; old Big Tank; 9.2 mi S of Rte. 104, 18.5 mi E of Las Vegas, near S rim of mesa. Heteranthera rotundifolia Grisebach Grisebach 2019-10-11 13:35:57 S. R. Hill