Directory       News       Site Map       Home
         
    Jepson eFlora
Key to families | Table of families and genera

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

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
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].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.