Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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William J. Stone

Perennial, ± aquatic; rhizomes thick
Leaves simple or with 3 sessile leaflets, generally alternate; stipules generally 0; petiole sheathing at base
Inflorescence: many types
Flower bisexual, radial; calyx 5-lobed; corolla 5-lobed, rotate to funnel-shaped; stamens 5, alternate corolla lobes, anthers with longitudinal slits; pistil 1, ovary superior or partially inferior, chamber 1, stigma simple or 2-lobed
Fruit: capsule, septicidal
Seeds few–many, smooth, shining
Genera in family: 5 genera, 30–40 species: worldwide.



Plant submersed; often with a cluster of short roots
Leaves simple, floating, deeply cordate, generally alternate (those on flowering stems opposite); petioles long
Inflorescence: umbel in leaf axils of flower petiole
Flower: corolla rotate, lobes bearing a glandular appendage near base; style short or 0, stigma persistent, 2-lobed
Species in genus: 20 species: Am, Eurasia, Africa. Sometimes placed in Gentianaceae but differs in having alternate leaves
Etymology: (Nymphaea-like)


N. peltata (S.G. Gmel.) Kuntze


Plant glabrous
Stem < 160 cm, creeping; flowering stems floating
Leaf 3–10 cm wide; margin wavy or entire
Inflorescence: flowers 2–5 in axillary bundles
Flower: pedicels 3–10 cm; calyx lobes oblong-lanceolate; corolla 30–40 mm diam, yellow, fringed-ciliate
Chromosomes: 2n=54
Ecology: Still water, slow-moving rivers
Elevation: ± 1100 m.
Bioregional distribution: n High Sierra Nevada (Trout Lake, El Dorado Co.)
Distribution outside California: Arizona, AR, ne US; native to Eurasia, Mediterranean
Cult in aquatic gardens.

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bioregional map for NYMPHOIDES%20peltata being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Nymphoides peltata
Retrieve dichotomous key for Nymphoides
Overlay Consortium of California Herbaria specimen data by county on this map
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