Erect perennial herbs. Basal leaves lobed, divided or dissected, those of the stem forming an involucre near to or remote from the peduncled flower or flowers. Sepals 4-20, petaloid. Petals none. Stamens 00, shorter than the sepals. Carpels 00. Achenes compressed, 1-seeded. [From the Greek, a flower shaken by the wind.]

About 85 species, widely distributed through the temperate and subarctic regions of both hemispheres. About 20 species are natives of North America. Type species: Anemone coronaria L.

* Achenes densely woolly.

Stem simple, slender, 1-flowered.

Root tuberous; sepals 6-20, narrow.

1.

A. caroliniana.

Rootstock slender; sepals 5-6, oval.

2.

A. parviflora.

Stem commonly branching above, tall, generally 2-several-flowered.

Leaves of the involucre sessile or short-petioled; sepals red; head of fruit globose or oval.

3.

A. hudsoniana.

Leaves of the involucre slender-petioled; sepals white or green; head cylindric, oval, or oblong.

Head of fruit cylindric; divisions of the leaves wedge-shaped, narrow.

4.

A. cylindrica.

Head of fruit oblong or oval; divisions of the leaves ovate, broad.

5.

A. virginiana.

** Achenes pubescent, or nearly glabrous.

Leaves of the involucre sessile.

Stout, 1°-2° high, branching and bearing several flowers; carpels nearly orbicular; flowers white.

6.

A. canadensis.

Slender, 2' - 12' high, 1-flowered; carpels narrow; flowers yellow.

7.

A. Richardsonii.

Leaves of the involucre petioled.

Involucral leaf-divisions lobed and incised; plant 4'-9' high.

8.

A. quinquefolia.

Involucral leaf-divisions dentate; plant 10'-16' high.

9.

A. trifolia.

14 Anemone L Sp Pl 538 1753 222

1. Anemone Caroliniŕna Walt. Carolina Anemone

Fig. 1880

Anemone caroliniana Walt. Fl. Car. 157. 1788.

Sparsely hairy, 4'-10' high, arising from a tuber 3"~4" in diameter. Basal leaves slender-petioled, 3-divided, the divisions variously toothed, lobed and parted, those of the involucre sessile and 3-cleft; flower erect, 9"-18" broad; sepals 6-20, linear-oblong, purple, varying to white; head of fruit oblong; achenes densely woolly.

Open places, Illinois to Wisconsin and South Dakota, south to Florida and Texas. Mayflower. April-May.

Anemone decapétala Ard., of the southern United States, Mexico and South America, ranging north to Kansas, differs by some or all of its basal leaves having the divisions merely crenate.