Alisma subcordatum

Rafinesque
Medical Repository hexade 2, 5:354. 1808.
Common names: Southern water-plantain alisma subcorde
Illustrated
Synonyms: Alisma parviflorum Pursh Alisma plantago-aquatica var. parviflorum (Pursh) Torrey
Treatment appears in FNA Volume 22.

Herbs, to 6 dm. Leaves emersed, rarely floating, petiolate; blade ovate to elliptic, to 15 × 10 cm. Inflorescences to 1 m. Flowers chasmogamous; sepals 1.5–2.5(–6) mm; petals white, 1–3 mm, margins slightly erose, apex mostly acuminate; anthers rounded, 0.4–0.6 mm; style ± curved, 0.2–0.4 mm, ¼ length ovary. Fruiting heads 2–4 mm diam; achenes obliquely ovoid, 1.5–2.2 mm, abaxially rounded, with 1 abaxial groove; beak ascending. 2n =14.


Phenology: Flowering spring–fall.
Habitat: Shallow ponds, stream margins, marshes, and ditches
Elevation: 50–1500 m

Distribution

V22 317-distribution-map.jpg

N.B., Ont., Que., Ala., Ark., Colo., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Va., W.Va., Wis., Mexico.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Alisma subcordatum"
Robert R. Haynes +  and C. Barre Hellquist +
Rafinesque +
Southern water-plantain +  and alisma subcorde +
N.B. +, Ont. +, Que. +, Ala. +, Ark. +, Colo. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +  and Mexico. +
50–1500 m +
Shallow ponds, stream margins, marshes, and ditches +
Flowering spring–fall. +
Medical Repository +
Illustrated +
Alisma parviflorum +  and Alisma plantago-aquatica var. parviflorum +
Alisma subcordatum +
species +