Vascular Plants of North Carolina
Account for Broadleaf Pond-lily - Nuphar advena   (Aiton) R. Brown ex W.T. Aiton
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Section 4 » Family Nymphaeaceae
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Author(Aiton) R. Brown ex W.T. Aiton
DistributionThroughout the Coastal Plain and lower Piedmont. Widely scattered over most of the remainder of the Piedmont and southern mountains, but scarce or absent from the northwestern Piedmont and northern mountains.

A widespread range across the eastern US, mainly from ME and WI south to the Gulf Coast and western TX. Though there are scattered holes in the middle of this range, it seems plausible for it to occur in the northwestern quarter of the state, based on its overall distribution.
AbundanceFairly common to common across the Coastal Plain and Sandhills, and at least locally fairly common in the eastern edge of the Piedmont. Rare in most of the Piedmont and southern mountains. No records known from north of Buncombe, Burke, and Catawba counties.
HabitatThis is an aquatic species of slow waters, both in brownwater and blackwater conditions. It is usually found in lakes and ponds, including millponds, impoundments, and beaver ponds, but it also can be found on slow-moving rivers, oxbows, and marshes.
See also Habitat Account for General Herbaceous Ponds
PhenologyBlooms from April into October, and fruits during this same period.
IdentificationThis species is a familiar one to people who spend time in the eastern half of the state around lakes and ponds. It has large rounded leaves (blades) with a strongly cordate or v-shaped cut at the base, growing to about 8-10 inches long and slightly less wide, typically 1.5-2 times longer than wide. These leaves are on long stalks below the water, holding the blades mostly off the water surface by a few inches; leaves can be angled upward or held somewhat horizontally, but at times these leaves can be floating (though floating leaves are more typical of the closely related N. sagittifolia). Both of these species have similar flowers -- a single fairly large rounded "cup" or ball of bright yellow flowers about 1-2 inches across, with the numerous petals essentially "glued" to the ovary and not spreading in early bloom but later spreading somewhat open. This species should be identifiable by most people even without the distinctive flower "ball", owing to the large elliptical leaves with a rounded tip and a V-cut to the leaf base at the petiole, and the leaves held off the water (and not typically floating as in Nymphaea odorata). As with most aquatic species, this one grows in sizable stands to the exclusion of other species.
Taxonomic CommentsThis species has often been named as Nuphar lutea or Nuphar luteum. Many references consider N. sagittifolia as a variety or subspecies of N. advena. See that species for more details.

Other Common Name(s)Often called Spatterdock or Common Spatterdock. Other frequent names include Cow-lily and Yellow Pond-lily.
State RankS5
Global RankG5
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