Cypripedium parviflorum var. pubescens

(Willdenow) O. W. Knight

Rhodora 8: 93. 1906.

Common names: Cypripède pubescent
Basionym: Cypripedium pubescens WilldenowCypripedium veganum unknown
Synonyms: Cypripedium calceolus var. planipetalum (Fernald) Victorin & J. RousseauCypripedium calceolus var. pubescens (Willdenow) CorrellCypripedium flavescens CockerellCypripedium parviflorum var. planipetalum Fernald
Treatment appears in FNA Volume 26. Treatment on page 506. Mentioned on page 502, 504, 505, 507.
Revision as of 03:13, 27 July 2019 by FNA>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

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.


Phenology: Flowering Apr–Aug.
Habitat: Mesic deciduous and coniferous forest, openings, thickets, prairies, meadows, fens
Elevation: 0–2900 m

Distribution

V26 1031-distribution-map.jpg

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.

Discussion

Selected References

None.

Lower Taxa

None.
Charles J. Sheviak +
(Willdenow) O. W. Knight +
Cypripedium pubescens +  and Cypripedium veganum +
Cypripède pubescent +
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. +  and Wis. +
0–2900 m +
Mesic deciduous and coniferous forest, openings, thickets, prairies, meadows, fens +
Flowering Apr–Aug. +
Illustrated +  and Endemic +
Cypripedium calceolus var. planipetalum +, Cypripedium calceolus var. pubescens +, Cypripedium flavescens +  and Cypripedium parviflorum var. planipetalum +
Cypripedium parviflorum var. pubescens +
Cypripedium parviflorum +
variety +