Nuphar lutea ssp. advena
Nuphar lutea (L.) Sm. ssp. advena (Aiton) Kartesz & Gandhi
Common spatterdock, Yellow cow lily, Yellow pond lily, Spatterdock
Nymphaeaceae (Water-Lily Family)
Synonym(s): Nuphar advena, Nuphar advena ssp. ozarkana, Nuphar advena var. tomentosa, Nuphar fluviatilis, Nuphar lutea ssp. macrophylla, Nuphar lutea ssp. ozarkana, Nuphar microcarpa, Nuphar ovata, Nuphar ozarkana, Nuphar puteora, Nuphar ×interfluitans, Nymphaea advena, Nymphaea chartacea, Nymphaea fluviatilis, Nymphaea macrophylla, Nymphozanthus advena, Nymphozanthus ozarkanus
USDA Symbol: nulua
Spatterdock plants grow in shallow water and are rooted in the mud. They have large leaves, 4–16 inches across, that are almost round except for the deep, narrow cut a third of the way to the center, where the stout stem is attached. The leaves of this coarse, rhizomatous aquatic perennial are quite variable and may be wide or rather narrow and submersed or floating; the petioles & peduncles have numerous minute air cavities. Flowers are 1–2 inches across and held above the water by their stout stems. They have 6 sepals, the outer 3 green, the inner 3 yellow and petal-like. The yellow petals are small, numerous, and stamen-like, mixed with the many stamens. The single, yellow, fleshy flower, with its prominent, lobed stigma is the best known feature. Yellow cow lily can grow in water up to 16 in. deep.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Aquatic plant, planted to 16 in beneath water surface.
Size Class: 1-3 ft.
Bloom InformationBloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , IL , IN , KS , KY , LA , MD , ME , MI , MN , MO , MS , NC , NH , NJ , NY , OH , OK , PA , SC , TN , TX , VA , VT , WI , WV
Native Distribution: Lab. to AK, s. to FL, TX & B.C.
Growing ConditionsWater Use: High
Light Requirement: Sun
Soil Moisture: Wet
Cold Tolerant: yes
BenefitUse Ornamental: Yellow cow-lilys growth form is similar to a water lily with leaves and flowers that float on the waters surface. Unusual globular flowers never look fully open, but are interesting. In winter, the foliage becomes lettuce-like and can be seen under water. Good for wetland gardens and habitat.
Conspicuous Flowers: yes
Interesting Foliage: yes
BibliographyBibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
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Additional resourcesUSDA: Find Nuphar lutea ssp. advena in USDA Plants
FNA: Find Nuphar lutea ssp. advena in the Flora of North America (if available)
Google: Search Google for Nuphar lutea ssp. advena
MetadataRecord Modified: 2010-12-27
Research By: RSB