Xanthium aridum
PNW
WA
2 specimens from 1 herbaria:
Washington (2)
Benton (2)
Caution: the coordinates for this specimen appear to be incorrect.Xanthium aridum St. John

Washington: Benton County: In Black Canyon, Rattlesnake Hills. Elev. 2400 feet
46.52222° N, 120.33361° W
Coordinate Source: Estimated. Invalid coordinates (located outside county bounds).
Gravel benches. Type. Type status of each specimen cannot be verified at this time, so both specimens are filed together.; Northw. Sci. 2: 93, 1928. Type specimen (basionym and designation not recorded).

Harold St. John 8100, Apr 8, 1927
With C. English, G. N. Jones, L. A. Mullen
WS, Accession: 46774
Caution: the coordinates for this specimen appear to be incorrect.Xanthium aridum St. John

Washington: Benton County: In Black Canyon, Rattlesnake Hills. Elev. 2400 feet
46.52222° N, 120.33361° W
Coordinate Source: Estimated. Invalid coordinates (located outside county bounds).
Gravel benches. Type. Type status of each specimen cannot be verified at this time, so both specimens are filed together.; Northw. Sci. 2: 93, 1928. Type specimen (basionym and designation not recorded).

Harold St. John 8100, Apr 8, 1927
With C. English, G. N. Jones, L. A. Mullen
WS, Accession: 46775