Skip to main content
This species is accepted, and its native range is Central & E. Canada to N. Central & E. U.S.A.
Cypripedium reginae

[C-EM]
Biology

Flowering in May to August.

Distribution

Canada (Miquelon Island, Nova Scotia, Newfoundland, New Brunswick, Prince Edward Island, Quebec and Ontario across to Saskatchewan), U.S.A. (New England, New York State, NewJersey south to North Carolina and west to Michigan, Wisconsin, Minnesota and North Dakota).

Ecology

Found, usually on the margins, in swamps ofAbies (balsam), Lanx (tamarack), Picea (spruce),juniperus (cedar), or Thuja (arborvitae), or in upland bogs and swamps, prairies, meadows, and rpossy wooded slopes, often in large colonies of several thousand plants, usually in wet neutral or calcareous soils; sea level to 500 m. Flowering in May to August.

General Description

A tall erect herb, often forming colonies, with a leafy stem that is glandular hairy, 35-85 cm tall, growing from a short stout rhizome. Leaves strongly ribbed and plicate, three to seven, ovate to elliptic-lanceolate, acute to acuminate, 10-24 cm long, 6-15 cm wide, sheathing at the base, with veins and margins strongly hairy. Inflorescence one- or rarely two- to four-flowered; peduncle villose and glandular hairy; bracts leafy, oblong-elliptic to ovate-lanceolate, 6-13 cm long, 2.5-6 cm wide. Flowers large, showy, white with a rose-pink or rarely a white lip, the staminode white with a yellow margin, spotted with red, in the apical half; pedicel and ovary 3-6 cm long, villose and glandular hairy. Dorsal sepal erect or ascending, flat, elliptic to ovate-orbicular, obtuse or rounded at apex, 3-4.5 cm long, 2.5-4.5 cm wide, hairy on both surfaces, ciliate; synsepal entire, concave, ovate-orbicular, obtuse, 3-4.2 cm long, 2-3.7 cm wide, hairy on outer side, ciliate. Petals spreading oblong to elliptic-lanceolate, obtuse or rounded at apex, 2.5-4.7 cm long, 1-1.7 cm wide, pubescent in basal half of inner surface, glandular-ciliate. Lip subglobose, 2.5-5 cm long, 1.5-3.5 cm across, the margins incurved, lorigitudinally shaIlowly furrowed on outer surface. Column 1-1.5 cm long; staminode ovate-trullate, blunt or emarginate, longitudinally concave, 1-1.7 cm long, 0.7-1.4 cm wide; anther filaments blunt, broad, and rounded at apex.

Native to:

Arkansas, Connecticut, Illinois, Indiana, Iowa, Kentucky, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, North Dakota, Nova Scotia, Ohio, Ontario, Pennsylvania, Prince Edward I., Québec, Saskatchewan, Tennessee, Vermont, Virginia, West Virginia, Wisconsin

Introduced into:

Czechoslovakia

Cypripedium reginae Walter appears in other Kew resources:

Date Reference Identified As Barcode Type Status
19473.000
72570.000
Gouldie [s.n.], Canada Cypripedium album K000363707
Brewer [s.n.], USA Cypripedium spectabile K000363706

First published in Fl. Carol.: 222 (1788)

Accepted by

  • Davidse, G. & al. (eds.) (2009). Flora Mesoamericana 4(1): 1-855. Universidad Nacional Autónoma de México, México, D.F.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Herkert, J.R. & Ebinger, J.E. (eds.) (2002). Endangered and Threatened Species of Illinois: status and distribution 1: 1-161. Endangered species protection board, Springfield, Illinois.

Literature

Kew Backbone Distributions

  • Danihelka, J. Chrtek, J. & Kaplan, Z. (2012). Checklist of vascular plants of the Czech Republic Preslia. Casopsi Ceské Botanické Spolecnosti 84: 647-811.

Cypripedioideae: e-monocot.org

  • Walter, T. Original description of Cypripedium reginae. (1788).at

Cypripedioideae: e-monocot.org
All Rights Reserved

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/