]> GH barcode-00404815 United States of America California T26N, R9E, norhtwest 1/4 Section 15. on the northwest side of Round Valley Reservoir, just below the road, about 2 1/2 miles southwest of Greenville Persicaria lapathifolia (Linnaeus) Delarbre (Linnaeus) Delarbre 2021-10-11 12:12:00 L. Ahart