This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Anemone parviflora Michx. Fl. Bor. Am. I: 319. 1803.
Sparingly hairy, 4'-12' high from slender rootstocks. Basal leaves long-petioled, 3-parted, the broadly wedge-shaped divisions obtusely lobed or crenate, those of the involucre nearly sessile, similarly lobed; flower I' in diameter or less; sepals oval, very obtuse, white; head of fruit short-oval or globose; achenes densely woolly.
Anemone hudsoniana Richards. Franklin's Journey 741. 1823.
Silky-hairy, 6'-18' high, sparingly branched, the lateral peduncles involucrate. Basal leaves long-petioled, reniform, 3-5-parted, the divisions cleft into linear acute lobes, those of the involucres short-petioled and more or less cuneate, otherwise similar; sepals 5-9, greenish or red, oblong, forming a flower 1/2'-1' broad; head of fruit globose or oblong, 1/2'-1' long; achenes compressed, densely woolly, tipped with the short subulate styles.
Anticosti and New Brunswick to Maine, New York, Michigan and Minnesota. Summer.
The similar A. glob˛sa Nutt., of the Rocky Mountains, with larger flowers, occurs in the Black Hills of South Dakota and Manitoba, and is reported from Nebraska. Both have been confused with A. multifida Poir, of southern South America, which they much resemble.
Anemone cylindrica A. Gray, Ann. Lyc. N. Y. 3: 221. 1836.
Silky-hairy throughout, 1°-2° high, branched at the involucre. Basal leaves tufted, long-petioled, broader than long, 3-5-parted, the divisions cuneate-obovate or cuneate-oblanceolate, narrow; those of the involucre similar, their petioles about 1' long; sepals 5-6, greenish-white, oblong, generally obtuse; flowers about 9" broad, on elongated generally naked peduncles; head of fruit cylindric, 1' in length or more; achenes compressed, woolly, tipped with the minute styles.
Open places, eastern New Brunswick to Massachusetts, New York, New Jersey, Kansas and Saskatchewan. Also in the Rocky Mountains, south to New Mexico, and in British Columbia. June-Aug.