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Nuphar advena (Aiton) W. T. Aiton [family NYMPHAEACEAE]

Date Updated: 23 July 2012

Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 3,
Names
Nuphar advena (Aiton) W. T. Aiton [family NYMPHAEACEAE], Hortus Kew., 3: 295. 1811 Nymphaea advena Aiton [family NYMPHAEACEAE], Hort. Kew., 2: 226. 1789 Nuphar fluviatilis (R. M. Harper) Standley [family NYMPHAEACEAE] Nuphar lutea subsp. advena (Aiton) Kartesz & Gandhi [family NYMPHAEACEAE] Nuphar lutea subsp. macrophylla (Small) E. O. Beal [family NYMPHAEACEAE] Nuphar lutea subsp. ozarkana (G. S. Miller & Standley) E. O. Beal [family NYMPHAEACEAE] Nuphar ovata (G. S. Miller & Standley) Standley [family NYMPHAEACEAE] Nuphar ozarkana (G. S. Miller & Standley) Standley [family NYMPHAEACEAE] Nuphar puteora Fernald [family NYMPHAEACEAE] Nuphar ×interfluitans Fernald [family NYMPHAEACEAE] Nymphaea advena subsp. macrophylla (Small) G. S. Miller & Standley [family NYMPHAEACEAE] Nymphaea chartacea G. S. Miller & Standley [family NYMPHAEACEAE] Nymphaea fluviatilis R. M. Harper [family NYMPHAEACEAE] Nymphaea ludoviciana G. S. Miller & Standley [family NYMPHAEACEAE] Nymphaea macrophylla Small [family NYMPHAEACEAE] Nymphaea microcarpa G. S. Miller & Standley [family NYMPHAEACEAE] Nymphaea ovata G. S. Miller & Standley [family NYMPHAEACEAE] Nymphaea ozarkana G. S. Miller & Standley [family NYMPHAEACEAE] Nymphaea puberula G. S. Miller & Standley [family NYMPHAEACEAE]
Information
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
Altitude range
0-450 m
Distribution
Mexico (Coahuila, Tamaulipas)West Indies (Cuba).USA Ala.USA Ark.USA Conn.USA Del.USA D.C.USA Fla.USA Ga.USA Ill.USA Ind.USA Kans.USA Ky.USA La.USA MaineUSA Md.USA Mich.USA Miss.USA Mo.USA N.J.USA N.Y.USA N.C.USA OhioUSA Okla.USA Pa.USA S.C.USA Tenn.USA Tex.USA Vt.USA Va.USA W.Va.USA Wis.Canada Ont.
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.
Nuphar advena (Aiton) W. T. Aiton [family NYMPHAEACEAE]
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