Difference between revisions of "Alisma gramineum"
Flore des Environs de Spa 1: 175. 1811.
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|name=Alisma geyeri | |name=Alisma geyeri | ||
|authority=Torrey | |authority=Torrey | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Alisma gramineum var. angustissimum | |name=Alisma gramineum var. angustissimum | ||
|authority=A. J. Hendricks | |authority=A. J. Hendricks | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Alisma gramineum var. wahlenbergii | |name=Alisma gramineum var. wahlenbergii | ||
|authority=Raymond & Kucyniak | |authority=Raymond & Kucyniak | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Alismataceae;Alisma;Alisma gramineum | |hierarchy=Alismataceae;Alisma;Alisma gramineum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Alisma gramineum | name=Alisma gramineum | ||
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|authority=Lejeune | |authority=Lejeune | ||
|rank=species | |rank=species | ||
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|publication year=1811 | |publication year=1811 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_109.xml |
|genus=Alisma | |genus=Alisma | ||
|species=Alisma gramineum | |species=Alisma gramineum | ||
Latest revision as of 20:29, 5 November 2020
Herbs, 0.5–30(–50) cm. Leaves submersed, floating, or emersed; submersed sessile, ribbonlike; floating linear, 15–100 × 0.2–2(–3) cm, blade present or absent; emersed petiolate, rarely sessile, blade linear-lanceolate, lanceolate, or narrowly elliptic, 4–2–6 × 1.5 cm. Inflorescences to 50 cm. Flowers cleistogamous in submersed plants, chasmogamous in terrestrial; sepals 1.5–3 mm; petals faint purplish white, 2–4 mm, margin entire to slightly erose, apex obtuse; anthers ovoid, 0.3–0.6 mm; style ± coiled, 0.4–0.5 mm, ½ length ovary. Fruiting heads 3–6 mm diam.; achenes orbicular to orbicular-ovoid, 2–2.7 mm, with 2 shallow, abaxial grooves lateral to 1 abaxial ridge, beak erect. 2n =14.
Phenology: Flowering summer–fall.
Habitat: Shallow fresh or brackish water or muddy shores
Elevation: 30–1800 m
Distribution
Alta., B.C., Man., Ont., Que., Sask., Ariz., Calif., Colo., Idaho, Minn., Mont., Nebr., Nev., N.Y., N.Dak., Oreg., S.Dak., Utah, Vt., Wash., Wyo., Eurasia, n Africa.
Discussion
Selected References
None.