Nuphar advena (Aiton) W.T.Aiton
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Nymphaeaceae
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Scientific Name
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Description
Species Description - Floating and submersed lvs rarely present; emersed lvs mostly 2–4 dm, on stout petioles, the subacute basal lobes separated by a broadly triangular sinus; petioles terete, or oval in cross section; fls 3–5 cm thick; sep 6, yellow within or rarely suffused with purple; anthers 3–7 mm, longer than the filaments; stigmatic disk greenish, 10–15 mm wide at anthesis, mostly 14–18-rayed; fr broadly ovoid, 4 cm, mostly thicker than long. Sluggish streams, less often in ponds; s. Me. to Fla. and Cuba, w. to Wis., Mo., Kans., Tex., and n. Mex. Summer. (N. fluviatilis; N. macrophylla; N. puteorum)