Cypripedium parviflorum var. parviflorum

Common names: Small yellow lady’s-slipper
Treatment appears in FNA Volume 26. Treatment on page 505. Mentioned on page 504.

Bracts: abaxial surface of distalmost sheathing bract (and often the next) densely and conspicuously silvery-pubescent when young (later sometimes glabrescent). Leaves 4–5, rather evenly spaced along stem, alternate, spreading; blade orbiculate to lance-elliptic to ovate or obovate, 9–19 × 2.5–9 cm. Flowers 1–2, small, scent moderate to faint, rose or musty; sepals and petals usually minutely but densely spotted with reddish brown or madder and appearing uniformly dark, rarely only coarsely spotted and blotched; lip oblance-ovoid to calceolate (slipper-shaped), 22–34 mm; orifice 12–19 mm.

Phenology: Flowering Apr–Jun.
Habitat: Mesic to dry deciduous and deciduous-hemlock forests, usually on slopes
Elevation: mostly 0–1200 m


V26 1030-distribution-map.jpg

Ala., Ark., Conn., Del., Ga., Ill., Kans., Md., Mass., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., R.I., Tenn., Va.


Selected References


Lower Taxa


Charles J. Sheviak +
Salisbury +
Small yellow lady’s-slipper +
Ala. +, Ark. +, Conn. +, Del. +, Ga. +, Ill. +, Kans. +, Md. +, Mass. +, Mo. +, Nebr. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, R.I. +, Tenn. +  and Va. +
mostly 0–1200 m +
Mesic to dry deciduous and deciduous-hemlock forests, usually on slopes +
Flowering Apr–Jun. +
Trans. Linn. Soc. London +
Illustrated +  and Endemic +
Cypripedium parviflorum var. parviflorum +
Cypripedium parviflorum +
variety +