Difference between revisions of "Elatine americana"
Edinburgh J. Nat. Geogr. Sci. 1: 431. 1830.
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|name=Peplis americana | |name=Peplis americana | ||
|authority=Pursh | |authority=Pursh | ||
| + | |rank=species | ||
|publication_title=Fl. Amer. Sept. | |publication_title=Fl. Amer. Sept. | ||
|publication_place=1: 238. 1813 | |publication_place=1: 238. 1813 | ||
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|name=Elatine triandra subsp. americana | |name=Elatine triandra subsp. americana | ||
|authority=(Pursh) Á. Löve & D. Löve | |authority=(Pursh) Á. Löve & D. Löve | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=E. triandra var. americana | |name=E. triandra var. americana | ||
|authority=(Pursh) Fassett | |authority=(Pursh) Fassett | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Elatinaceae;Elatine;Elatine americana | |hierarchy=Elatinaceae;Elatine;Elatine americana | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Elatine americana | name=Elatine americana | ||
| − | |||
|authority=(Pursh) Arnott | |authority=(Pursh) Arnott | ||
|rank=species | |rank=species | ||
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|publication year=1830 | |publication year=1830 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_214.xml |
|genus=Elatine | |genus=Elatine | ||
|species=Elatine americana | |species=Elatine americana | ||
Latest revision as of 19:14, 5 November 2020
Herbs, submersed, 1.5–5 cm. Stems ascending or prostrate, branched. Leaves green; stipules lanceolate, 0.5–0.6 mm, margins dentate, apex acute; petiole 0.5–3 mm; blade obovate to broadly spatulate, 3–8 × 0.5–3.5 mm, base attenuate or cuneate, apex rounded to shallowly emarginate. Pedicels to 0.1 mm, erect. Flowers cleistogamous when submersed; sepals (2–)3, equal or 1 reduced, oblong-ovate or widely lanceolate, 0.5 × 0.3–0.5 mm; petals 3, greenish white or pinkish white to reddish, elliptic or ovate, 0.6–1.2 × 0.5 mm; stamens 3; styles 3. Capsules oblong-ovoid, 3-locular, 1.5 mm diam. Seeds 9–12 per locule, slenderly cylindric, ± straight, 0.4–0.6 × (0.1–)0.2 mm; pits angular-hexagonal, length 2–3 times width, in 6(–8) rows, (13–)16–25(–30) per row. 2n = 36.
Phenology: Flowering summer–early fall.
Habitat: Muddy shorelines including estuaries, in water to 50 cm deep.
Elevation: 0–300(–900) m.
Distribution
Man., N.B., N.W.T., Ont., Que., Calif., Conn., Del., Ill., Maine, Mass., Mich., Minn., Mo., Mont., N.H., N.J., N.Y., N.C., Okla., Pa., R.I., S.Dak., Va.
Discussion
Selected References
None.