Difference between revisions of "Caltha natans"
Reise 3: 284. 1776.
Illustrated
Treatment appears in FNA Volume 3.
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V3/V3_661.xml |
|genus=Caltha | |genus=Caltha | ||
|species=Caltha natans | |species=Caltha natans | ||
Revision as of 22:30, 16 December 2019
Stems leafy, floating or creeping, rooting at nodes. Basal leaves: blade ovate-reniform or cordate, largest 1-2.5 × 1-5 cm, margins nearly entire. Inflorescences 2-6-flowered. Flowers 8-13 mm diam.; sepals white or pinkish, 4-7(-8) mm. Follicles 20-55, widely spreading, sessile, oblong; bodies 3.2-6.5 × 1-2.5 mm; style and stigma curved, 0.1-0.4 mm. Seeds broadly elliptic, 0.5-0.8 mm. 2n=16, 32.
Phenology: Flowering late spring–summer (Jun–Aug).
Habitat: Floating or on moist mud, ponds, lakes, slow-moving rivers and streams
Elevation: 25-1500 m
Distribution
Alta., B.C., Man., N.W.T., Ont., Sask., Yukon, Alaska, Minn., Wis., Eurasia.
Discussion
Unlike the other species of Caltha in North America, C. natans is relatively invariable morphologically and has not been divided into segregate taxa.
Selected References
None.
Lower Taxa
None.