Cypripedium pubescens

Cypripedium pubescens
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Cypripedioideae
Genus:	Cypripedium
Species:	C. pubescens
Binomial name
Cypripedium pubescens Willd. (1804)
Synonyms
Cypripedium flavescens DC. (1803) Cypripedium luteum var. pubescens (Willd.) Raf. (1828) Cypripedium luteum var. angustifolium Raf. (1828) Cypripedium luteum var. biflorum Raf. (1828) Cypripedium luteum var. concolor Raf. (1828) Cypripedium luteum var. glabrum Raf. (1828) Cypripedium luteum var. grandiflorum Raf. (1828) Cypripedium luteum var. maculatum Raf. (1828) Cypripedium furcatum Raf. (1833) Cypripedium undatum Raf. (1833) Cypripedium assurgens Raf. (1833) Cypripedium aureum Raf. (1833) Cypripedium calceolus var. pubescens (Willd.) Correll (1938) Cypripedium veganum Cockerell & Barker (1900) Cypripedium parviflorum var. pubescens (Willd.) O.W. Knight (1906) Cypripedium parviflorum var. planipetalum Fernald (1926) Cypripedium planipetalum (Fernald) F.J.A. Morris (1929) Cypripedium calceolus var. planipetalum (Fernald) Victorin & J. Rousseau (1940)

Cypripedium pubescens (Large yellow lady's slipper, Yellow moccasin-flower, Nerveroot, Noah's ark, American valerian, Whippoorwill's-shoe) is a yellow lady's-slipper orchid native to northern North America. It is sometimes considered a variety of the closely related Cypripedium parviflorum.

Height is 12–30 inches tall.

From Port aux Choix, Newfoundland and Labrador

References

1. Blanchan, Neltje (2005). Wild Flowers Worth Knowing. Project Gutenberg Literary Archive Foundation. 
2. Cypripediums for House and Garden

External links

Media related to Cypripedium pubescens at Wikimedia Commons

• Flora of North America: Cypripedium parviflorum var. pubescens — map
• Cypripedium parviflorum var. pubescens in BoDD – Botanical Dermatology Database
• Illinois Wildflowers