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This species is accepted, and its native range is SW. Oregon to N. California.
Cypripedium californicum

[C-EM]
Biology

Flowering in late May to July.

Distribution

U.S.A. (California, Oregon).

Ecology

In wet marshy places by steep mountain streams and by springs, often growing in shade with Darlingtonia californica (California pitcher plant) and amongst the Calocedrus decurrens (incense cedar); 450-1000 m. Flowering in late May to July.

General Description

A clump-forming terrestrial herb 50-120 cm tall, growing from a short stout rhizome. Stems erect, leafy, glandularpubescent. Leaves 5-10, elliptic to elliptic-lanceolate, acute to acuminate, 5-15 cm long, 2-6 cm wide, pubescent on veins above and below, glandular-ciliate. Inflorescence racemose, laxly four- to twelve-flowered; peduncle and rhachis glandular-pubescent; bracts foliaceous, the largest at the base to 10 cm long, ciliate and pubescent. Flowers developing from the base upwards, small, nutant, with pale yellow-green sepals and petals, and a white lip with yellowish base blotched with brown inside and with lilac lines, the staminode white with green marks, scented like Cyclamen persicum or Convallaria majalis; pedicel and ovary 1.3-2 cm long, densely shortly glandular- pubescent, the pedicel distinct and slender. Dorsal sepal erect, flat, elliptic-ovate, acute, 1.4-2 cm long, 0.7-1.3 cm wide, pubescent on outer surface, glandular-ciliate; synsepal elliptic, minVtely bifid at tip, 1.2-2 cm long, 0.7-1.5 cm wide, pubescent on outer surface, glandular-ciliate. Petals obliquely spreading, lanceolate, acute, 1.4-1.7 cm long, 0.3-0.4 cm wide, pubescent at base and ciliate on upper margin. Lip globose, 1.5-2 cm long, 1-1.4cm wide, with infolded margins. Column 0.5-0.6 cm long; staminode strongly convex, broadly ovate, obtuse, 0.8-0.9 cm long, 0.6 cm wide; filaments short, blunt.

Native to:

California, Oregon

Cypripedium californicum A.Gray appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Dryden, K., USA 59736.000

First published in Proc. Amer. Acad. Arts 7: 389 (1868)

Accepted by

  • 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.

Literature

Cypripedioideae: e-monocot.org

  • Gray, A. Original description of Cypripedium californicum. 7, (1868).

Cypripedioideae: e-monocot.org
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Herbarium Catalogue Specimens

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
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