Nuphar polysepala Engelm.

NEW YORK BOTANICAL GARDEN
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TAXONOMIC REVISION OF THE GENUS NUPHAR Sm.
ERNEST O. BEAL HERBARIUM OF THE STATE UNIV. OF IOWA
IOWA CITY, IOWA USA AUG. 1854
NUPHAR LUTEUM (L.) SIBTH. & SM.
IN F L.. 6RAEC. PRODR. 1:361.1808 (1809)
subsp. polysepalum (Engelm.) Beal
mohohq mftDAnigM
CITED
HOWELL’ë PACIFIC COAST PLANTS. ...
• OREGON.
Nuphar poly sepal urn Engelm.
I Sauvie’s Island,
May 10th. 1886.
Thomas Howell.
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