Nuphar polysepala Engelm.

subsp. polysepalum (Engelm.) Beal
CITED
TAXONOMIC REVISION OF THE GENUS NUPHAR Sm.
ERNEST O. BEAL HERBARIUM OF THE STATE UNIV. OF IOWA
IOWA CITY, IOWA USA AUG. 1934
NUPHAR LUTEUM (L.) SIBTH. & SM.
IN FL. GRAEC. PRODR. 1:361.1808 (1809)
property of
HOWELL’S PACIFIC COAST PLANTS.
OREGON.
Nuphar polysepalum Engelm.
Sauvie’s Island,
May 10th. 1886.
Thomas Howell.
04211107