Jepson eFlora: Taxon page
Vascular Plants of California
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Nymphoides
FLOATING-HEART

Higher Taxonomy
Family: MenyanthaceaeView DescriptionDichotomous Key

Common Name: BUCKBEAN FAMILY
Habit: Perennial herb [annual], +- aquatic, herbage glabrous; rhizomes thick. Leaf: simple or of 3 leaflets, generally alternate; stipules generally 0; petiole bases sheathing. Inflorescence: various. Flower: bisexual [unisexual], radial; sepals 5, united or not; corolla rotate to funnel-shaped, lobes 5, fringed or coarse-hairy marginally or adaxially or not; stamens 5, epipetalous, alternate corolla lobes, anthers sagittate; nectaries generally 5, at ovary base; pistil 1, ovary generally +- superior, chamber 1, stigma 2-lobed. Fruit: capsule [+- fleshy], valves 2--4. Seed: few to many, smooth, shiny.
Genera In Family: 5 genera, +- 70 species: worldwide.
eFlora Treatment Author: Robert F. Thorne, C. Barre Hellquist & William J. Stone
Scientific Editor: Thomas J. Rosatti.
Nymphoides
Leaf: simple, submersed or floating, deeply cordate, generally alternate, those on flowering stems generally opposite; petioles > blades. Inflorescence: +- umbel, in axils of petioles near top of long, petiole-like flower stem, often with clusters of tuberous roots. Flower: corolla rotate, white or yellow, lobes with a glandular appendage near base; filaments < to > style; stigma persistent, 2-lobed. Fruit: irregularly dehiscent.
Species In Genus: +- 50 species: North America, South America, Eurasia, Africa, Australia. Etymology: (Greek: Nymphaea-like, from resemblance of leaves to those of water lily) Note: Sometimes in Gentianaceae, but plants differ in their +- aquatic habitats, generally alternate, petioled leaves, and several other ways.
Jepson eFlora Author: Robert F. Thorne, C. Barre Hellquist & William J. Stone
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Menyanthes trifoliata
Next taxon: Nymphoides peltata

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Citation for this treatment: Robert F. Thorne, C. Barre Hellquist & William J. Stone 2012, Nymphoides, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=8829, accessed on April 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.