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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
Layia glandulosa
BISH 615005 · Cottam, W.P., 1958
Mohave County; Grand Canyon National Monument; Covington's Mine Camp
Cichorium intybus
BISH 615934 · Cottam, W.P., 1938
Canada
Baccharis halimifolia
BISH 615948 · Cottam, W.P., 1938
Mantapeake
Xylorhiza tortifolia
BISH 615950 · Cottam, W.P., 1958
Mohave County; Grand Canyon National Monument; Cove North Saddle Horse Spring
Ambrosia psilostachya
BISH 615951 · Cottam, W.P., 1938
Westside; railroad tracks
Pterocaulon pycnostachyum
BISH 615975 · Cottam, W.P., 1938
Baxley
