Page authors: Don Knoke, David Giblin
Cypripedium fasciculatum
clustered lady's-slipper

Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Santa Cruz County, California, east to Montana and Colorado.

Habitat: Moist to rather dry and rocky, open coniferous forests.

Flowers: April-July

Origin: Native

Conservation Status: Not of concern


Perennial herbs 0.5-2 dm. tall, the stem with long, soft hairs and a sheathing bract near the ground.


A pair of leaves about midway on the stem, sessile, broadly-elliptic to elliptic-oval, 4-8 cm. broad, rounded; 1-2 lanceolate bracts near the inflorescence.


Flowers terminal, 2-4 in a tight cluster, subtended by conspicuous, greenish bracts; sepals 3, the lower pair fused completely below the lip, lanceolate-acuminate, 12-25 mm. long, greenish-brown or greenish-purple, usually mottled; the 2 small petals similar to the sepals, spreading, the third petal (lip) pouch-like, greenish-yellow with brownish-purple margins; fertile stamens 2, a third stamen sterile and petal-like, 2.5-3 mm. long.



Accepted Name:
Cypripedium fasciculatum Kellogg ex S. Watson
Publication: Proc. Amer. Acad. Arts. 17: 380. 1882.

Synonyms & Misapplications:
Cypripedium knightiae A. Nelson
Additional Resources:

PNW Herbaria: Specimen records of Cypripedium fasciculatum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Cypripedium fasciculatum checklist entry.

E-Flora BC: Cypripedium fasciculatum atlas page.

CalPhotos: Cypripedium fasciculatum photos.

USDA Plants: Cypripedium fasciculatum information.

35 photographs:
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