Nuphar polysepala Engelm.

TAXONOMIC REVISION OF THE GENUS NUPHAR SM.
ERNEST O. BEAL HERBARIUM OF THE STATE UNIV. OF IOWA
IOWA CITY, IOWA USA AUG. 1954
NUPHAR LUTEUM (L.) SIBTH. & SM.
IN FL. GRAEC. PRODR. 1:361.1808 (1809)
subsp. polysepalum (Engelm.) Beal
MORONG HERBARIUM
CITED
HOWELL’S PACIFIC COAST PLANTS.
OREGON.
N uphar polysepalum. Engelm.
Sauvie’s Island,
May 10th. 1886.
Thomas IJowell.
04211105