Jepson Herbarium
		University of California, Berkeley

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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

Rhizomes prostrate to erect, branched or not, stoloned or not.
Leaf: blade generally floating, elliptic to round, basal lobes generally ± acute.
Flower: sepals < petals, ± green; petals 8–many, white, ± red, [blue], or yellow; stamens many, attached to ovary side, erect to ascending at dehiscence, outer filaments flat, petal-like or not, inner linear; ovary < stamens.
Seed: ± spheric to elliptic, arilled.
± 50 species: ± worldwide. (Greek: water nymph) [Woods et al. 2005 Syst Bot 30:471–480] Plants of both CA taxa problematic weeds in waterways.

Rhizome prostrate, branched or not.
Leaf: blade 5–25 cm wide, ± round.
Flower: 6–19 cm wide, floating; sepals, petals lanceolate to ovate; petals 17–43; outer stamens generally 3–4 mm, inner anthers 7–12 mm; styles generally 20.
Fruit: 2.5–3 cm, depressed-spheric.
Seed: 1.5–2.5 mm.
2n=56,84. Quiet waters, ponds, edges of lakes; generally < 2700 m. High Sierra Nevada (Lake Tahoe), Sacramento Valley (Butte Co.), San Gabriel Mountains, expected elsewhere;

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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].

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Bioregions in which taxon occurs	Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.