Anemone americana

(de Candolle) H. Hara

J. Jap. Bot. 33: 271. 1958.

Common names: Round-lobed hepatica anémone d'Amérique hépatique d'Amérique
EndemicIllustrated
Basionym: Hepatica triloba var. americana de Candolle Syst. Nat. 1: 216. 1817
Synonyms: Hepatica americana (de Candolle) Ker-Gawler Hepatica nobilis var. obtusa (Pursh) Steyermark Hepatica triloba var. obtusa Pursh
Treatment appears in FNA Volume 3.

Aerial shoots 5-18 cm, from rhizomes, rhizomes ascending to horizontal. Basal leaves 3-15, often purplish abaxially, simple, deeply divided; petiole 5-20 cm; leaf-blade widely orbiculate, 1.5-7 × 2-10 cm, base cordate, margins entire, apex rounded, surfaces strongly villous to glabrescent; lobes 3 (-4), widely ovate, 1-4 cm wide; middle lobe 50-70 (-75) % of total blade length. Inflorescences 1-flowered, villous to pilose; involucral-bracts 3, 1-tiered, simple, dissimilar to basal leaves, sessile, calyxlike, closely subtending flower, ovate or elliptic, 0.65-1.8 × 0.5-1.2 cm, bases distinct, cuneate, margins entire, apex obtuse, strongly villous to glabrescent. Flowers: sepals 5-12, white to pink or bluish, ovate to obovate 7.5-14.5 × 3.5-7.7 mm, glabrous; petals absent; stamens 10-30. Heads of achenes spheric; pedicel 0.1-0.4 cm. Achenes: body narrowly ovoid, 3.5-5 × 1.2-1.6 mm, slightly winged, hispid, gradually tapering; beak indistinct. 2n=14.


Phenology: Flowering spring.
Habitat: Mixed woods, often in association with both conifers and deciduous trees
Elevation: 0-1200 m

Distribution

V3 798-distribution-map.gif

Man., N.B., N.S., Ont., Que., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Anemone americana is found in habitats similar to those of A. acutiloba but usually in drier sites with more acid soils.

Selected References

None.

Lower Taxa

None.

"broadened" is not a number.

... more about "Anemone americana"
strongly villous +  and glabrescent +
Obtuse (?) +  and Rounded (?) +
Bryan E. Dutton +, Carl S. Keener +  and Bruce A. Ford +
(de Candolle) H. Hara +
distinct +
cuneate +  and cordate +
Hepatica triloba var. americana +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
curved +  and straight +
indistinct +
plumose +
0 cm0 mm <br />0 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
tapering;ovoid +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
globose;cylindric +
Round-lobed hepatica +, anémone d'Amérique +  and hépatique d'Amérique +
2-9-flowered +
Man. +, N.B. +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
0-1200 m +
sessile +  and pedicellate +
showy +  and inconspicuous +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
stalked +, sessile +  and aggregate +
ovoid;obovoid +
Mixed woods, often in association with both conifers and deciduous trees +
spheric +
axillary +  and terminal +
villous +  and pilose +
sessile +  and simple +
0.65 cm6.5 mm <br />0.0065 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (7 cm70 mm <br />0.07 m <br />) +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
petiolate +, compound +  and simple +
whorled +, opposite +  and alternate +
1cm;4cm +
palmate +  and pinnate +
toothed;entire +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
distinct +
conspicuous +
reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Flowering spring. +
J. Jap. Bot. +
ascending +  and horizontal +
not arillate +  and stalked +
white;pink or bluish +
not persistent +
distinct +
5 +  and 12 +
ovate +  and obovate +
0.35 cm3.5 mm <br />0.0035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.77 cm7.7 mm <br />0.0077 m <br />) +
5 cm50 mm <br />0.05 m <br /> (18 cm180 mm <br />0.18 m <br />) +
Endemic +  and Illustrated +
persistent +
strongly villous;glabrescent +
Hepatica americana +, Hepatica nobilis var. obtusa +  and Hepatica triloba var. obtusa +
Anemone americana +
species +
2-9-flowered +
herbaceous +  and woody +