1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
2 specimens
Xanthium
BISH 741739
Degener, O.; Degener, I., 1964Jordan
BISH 37474 · Stone, B.C., 1968
San Diego County. opp. Collwood Park, Montezuma Ave., in a dry wash. "Cockleburr"