Difference between revisions of "Nuphar polysepala"
Trans. Acad. Sci. St. Louis 2: 282. 1865 (as polysepalum).
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|special_status={{Treatment/ID/Special_status | |special_status={{Treatment/ID/Special_status | ||
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|label=Endemic | |label=Endemic | ||
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|name=Nuphar lutea subsp. polysepala | |name=Nuphar lutea subsp. polysepala | ||
|authority=(Endelmann) E. O. Beal | |authority=(Endelmann) E. O. Beal | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Nymphaea polysepala | |name=Nymphaea polysepala | ||
|authority=(Engelmann) Greene | |authority=(Engelmann) Greene | ||
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|hierarchy=Nymphaeaceae;Nuphar;Nuphar polysepala | |hierarchy=Nymphaeaceae;Nuphar;Nuphar polysepala | ||
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name=Nuphar polysepala | name=Nuphar polysepala | ||
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|authority=Engelmann | |authority=Engelmann | ||
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|publication title=Trans. Acad. Sci. St. Louis | |publication title=Trans. Acad. Sci. St. Louis | ||
|publication year= | |publication year= | ||
| − | |special status=Endemic; | + | |special status=W1;Endemic;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_672.xml |
|genus=Nuphar | |genus=Nuphar | ||
|species=Nuphar polysepala | |species=Nuphar polysepala | ||
Latest revision as of 22:50, 5 November 2020
Rhizomes 3-8 cm diam. Leaves mostly floating, occasionally emersed or submersed; petiole terete. Leaf blade abaxially and adaxially green, widely ovate, 10-40(-45) × 7-30 cm, ca. 1.2-1.5 times as long as wide, sinus 1/3-2/3 length of midrib, lobes divergent to overlapping; surfaces glabrous. Flowers 5-10 cm diam.; sepals mostly (6-)9(-12), abaxially green to adaxially yellow, sometimes red-tinged toward base; petals oblong, thick; anthers 3.5-9 mm, slightly shorter than filaments. Fruit green to yellow, cylindric to ovoid, 4-6(-9) × 3.5-6 cm, strongly ribbed, slightly constricted below stigmatic disk; stigmatic disk green, 20-35 mm diam., entire to crenate; stigmatic rays 8-26(-36), linear to lanceolate, terminating within 1(-1.5) mm from margin of disk. Seeds 3.5-5 mm. 2n = 34.
Phenology: Flowering spring (later in north)-summer.
Habitat: Ponds, lakes, and sluggish streams
Elevation: 0-3700 m
Distribution
B.C., N.W.T., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.
Discussion
Plants intermediate between Nuphar polysepala and N. variegata occur in eastern British Columbia.
Selected References
None.