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FNA | Family List | FNA Vol. 26 | Orchidaceae | Cypripedium

11b. Cypripedium parviflorum var. pubescens (Willdenow) O. W. Knight, Rhodora. 8: 93. 1906.

Cypripède pubescent

Cypripedium pubescens Willdenow, Hort. Berol. 1: plate 13. 1804; C. calceolus Linnaeus var. planipetalum (Fernald) Victorin & J. Rousseau; C. calceolus var. pubescens (Willdenow) Correll; C. flavescens de Candolle; C. parviflorum var. planipetalum Fernald; C. veganum Cockerell, P. Barker & M. Barker

Bracts: abaxial surface of distalmost sheathing bract (and often the next) densely and conspicuously silvery-pubescent when young (later sometimes glabrescent). Leaves 3–5, on proximal portion of or more evenly spaced along stem, alternate, erect to spreading; blade orbiculate or broadly ovate to elliptic-lanceolate or oblanceolate, 7.9–20.9 × 1.5–12 cm. Flowers 1–2, large to rather small (very small in some boreal and northern cordilleran specimens), scent moderate to faint, rose or musty; sepals commonly spotted, striped, and reticulately marked with reddish brown or madder, rarely extensively blotched or wholly unmarked; lip oblance-ovoid to calceolate or subglobose, 20–54 mm; orifice 10–23(–27) mm. 2n = 20.

Flowering Apr--Aug. Mesic deciduous and coniferous forest, openings, thickets, prairies, meadows, fens; 0--2900 m; Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., Que., Sask.; Ariz., Colo., Conn., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Oreg., Pa., R.I., Tenn., Utah, Vt., Va., Wash., W.Va., Wis.


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