Nuphar advena

(Aiton) W. T. Aiton

Hortus Kew.3: 295. 1811

Synonyms: Nuphar fluviatilis Nuphar lutea advena Nuphar lutea macrophylla Nuphar lutea ozarkana Nuphar ovata Nuphar ozarkana Nuphar puteora Nuphar ×interfluitans Nymphaea advena macrophylla Nymphaea chartacea Nymphaea fluviatilis Nymphaea ludoviciana Nymphaea macrophylla Nymphaea microcarpa Nymphaea ovata Nymphaea ozarkana Nymphaea puberula
Basionyms: Nymphaea advena
Found in FNA Volume 3.
FNA03 P12 Nuphar pg 69.jpeg
Rhizomes mostly 5-10 cm diam. Leaves mostly emersed, occasionally floating or submersed; petiole terete or adaxially slightly flattened. Leaf blade abaxially and adaxially green, broadly ovate to nearly orbiculate, 12-40 - 7-30 cm, 1-2 times as long as wide, sinus 1/3-1/2 length of midrib, lobes overlapping to divergent, often forming angle of 90° or greater; surfaces abaxially glabrous to sparsely pubescent. Flowers to 4 cm diam.; sepals mostly 6, abaxially green to adaxially yellow, rarely red-tinged toward base; petals oblong, thick; anthers 3-7 mm, longer than filaments. Fruit green, ovoid, 2-5 × 2-5 cm, moderately ribbed, slightly constricted below stigmatic disk; stigmatic disk green, occasionally reddened, 13-25 mm diam., entire to crenate; stigmatic rays 9-23, linear to lanceolate, terminating 1-3 mm from margin of disk. Seeds 3-6 mm.

Phenology: Flowering mid spring–early fall, extended farther south.
Habitat: Ponds, lakes, sluggish streams and rivers, springs, marshes, ditches, canals, sloughs, and tidal waters
Elevation: 0-450 m

Distribution

Ont., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Kans., Ky., La., Maine, Md., Mich., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Vt., Va., W.Va., Wis., Mexico (Coahuila, Tamaulipas), West Indies (Cuba).

Discussion

Nuphar advena is extremely variable and intergrades with N. orbiculata, N. ulvacea, and N. sagittifolia in areas of sympatry. Intergradation with N. variegata (E. O. Beal 1956) can be observed in the mid-Atlantic region, although most floristic treatments from the area of overlap treat the two taxa as distinct species. Local variation in the Ozark Mountains and in Texas, the basis for the names Nymphaea ozarkana, N. ovata, and N. puberula, is not considered sufficient to warrant recognition.

Facts about "Nuphar advena"
AuthorJohn. H. Wiersema + and C. Barre Hellquist +
BasionymNymphaea advena +
Elevation0-450 m +
HabitatPonds, lakes, sluggish streams and rivers, springs, marshes, ditches, canals, sloughs, and tidal waters +
IllustratorJohn Myers +
PhenologyFlowering mid spring–early fall, extended farther south. +
Referenceschneider1977a + and wiersema1994a +
SynonymNuphar fluviatilis +, Nuphar lutea advena +, Nuphar lutea macrophylla +, Nuphar lutea ozarkana +, Nuphar ovata +, Nuphar ozarkana +, Nuphar puteora +, Nuphar ×interfluitans +, Nymphaea advena macrophylla +, Nymphaea chartacea +, Nymphaea fluviatilis +, Nymphaea ludoviciana +, Nymphaea macrophylla +, Nymphaea microcarpa +, Nymphaea ovata +, Nymphaea ozarkana + and Nymphaea puberula +
Taxon nameNuphar advena +
Taxon parentNuphar +
Taxon rankspecies +
VolumeVolume 3 +