Common Name: WATERLILY FAMILY Habit: 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. Genera In Family: 5 genera, +- 70 species: +- worldwide. eFlora Treatment Author: John H. Wiersema Scientific Editor: Thomas J. Rosatti.
Common Name: COW-LILY, YELLOW POND-LILY Habit: Rhizomes prostrate, branched, not stoloned. Leaf: blade generally ovate to round. Flower: sepals persistent; petals 10--20, stamen-like, thick, oblong to thin, spoon-shaped; stamens many, generally yellow, attached to receptacle, erect to incurved at dehiscence; ovary > stamens. Seed: ovoid, not arilled. Etymology: (Arabic name) Reference: Padgett 2007 Rhodora 109:1--95 Unabridged Reference: Padgett et al. 1999 Amer J Bot 86:1316--1324
Nuphar polysepala Engelm.
NATIVE Leaf: blade generally floating, 1--4 dm, oblong to ovate, basal lobes generally +- rounded. Flower: 5--10 cm wide; sepals 7--9(12), < 5 cm, ovate to wide-obovate, green or yellow-green, red-tinged or not; petals, stamens yellow, red-tinged or not; stigmatic disk 2--3.5 cm wide. Seed: 3--5 mm. Chromosomes: 2n=34. Ecology: Ponds, slow streams; Elevation: < 2500 m. Bioregional Distribution: NW, CaRH, n&c SN, GV, n&c CW, MP; Distribution Outside California: to Alaska, Rocky Mountains. Flowering Time: Apr--Sep Synonyms: Nuphar lutea (L.) Sm. subsp. polysepala (Engelm.) E.O. Beall; Nymphaea polysepala (Engelm.) Greene Jepson eFlora Author: John H. Wiersema Reference: Padgett 2007 Rhodora 109:1--95 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Nuphar Next taxon: Nymphaea
Botanical illustration including Nuphar polysepala
Citation for this treatment: John H. Wiersema 2012, Nuphar polysepala, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=34748, accessed on April 25, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 25, 2024.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
Data provided by the participants of the
Consortium of California Herbaria.
MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month
Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).
