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Key to families | Table of families and genera

This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.

Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

NYMPHAEACEAE WATERLILY FAMILY

John H. Wiersema


Perennial, aquatic, rhizomed, stoloned or not; herbage with air chambers.
Leaf: alternate, from rhizome; blades floating, submersed, or ± emergent, << petiole, ± deeply notched at base into 2 lobes [ peltate].
Inflorescence: 1-flowered, axillary; peduncle long.
Flower: bisexual, generally on or above water; sepals 4–14, free, petal-like or not; petals many [(0)], stamen-like or not; stamens many, attached to receptacle or ovary side, filaments generally wide; ovary compound, superior to inferior, chambers 3–many, many-ovuled, stigmas in radiating lines on stigmatic disk.
Fruit: berry-like, ± dehiscent or not, spongy.
5 genera, ± 70 species: ± worldwide. [Wiersema & Hellquist 1997 FNANM 3:66–77] —Scientific Editor: Thomas J. Rosatti.

Key to Nymphaeaceae

1. Lf veins ± pinnate; sepals 5–14 (inner increasingly petal-like; petals inconspicuous), round to broad-obovate, ± erect; ovary superior; stigmatic disk margin entire to crenate ..... NUPHAR

1' Lf veins ± palmate; sepals generally 4 (petals conspicuous), generally longer than wide, ± spreading; ovary partly inferior; stigmatic disk margin with ± erect-incurved appendages ..... NYMPHAEA

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Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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