Burke: Cypripedium montanum

	Cypripedium montanum
	mountain lady's-slipper
Habit	Glandular-pubescent, perennial herbs, the stems 2-6 dm. tall, leafy throughout.
Leaves	Leaves alternate, broadly elliptic to ovate-elliptic, 5-15 cm. long and up to 7 cm. broad, sessile and sheathing.
Flowers	Flowers 1-3 near the tip of the stem, each subtended and usually exceeded by an erect leaf-like bract; sepals and petals light to deep brownish-purple, narrowly to broadly lanceolate, the upper sepal 4-5 cm. long, the lower pair shorter, fused nearly to the tip; 2 small petals spreading, up to 6.5 cm. long; the third petal (lip) pouch-like, obovoid, 2-3 cm. long, dull white, usually purplish-veined; fertile stamens 2, the third stamen sterile and petal-like, up to 10 mm. long, ovate, yellowish-white and purple-spotted.
Fruits	Capsule.

	Cypripedium montanum
Flowering time	May-July
Habitat	Dry to moist open woods, low to mid-elevations in the mountains.
Distribution	Occurring east of the Cascades crest in Washington; Alaska to California, east to Montana and Wyoming. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa	C. ×columbianum, C. fasciculatum, C. parviflorum
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Cypripedium montanum

mountain lady's-slipper

Habit

Glandular-pubescent, perennial herbs, the stems 2-6 dm. tall, leafy throughout.

Leaves

Leaves alternate, broadly elliptic to ovate-elliptic, 5-15 cm. long and up to 7 cm. broad, sessile and sheathing.

Flowers

Flowers 1-3 near the tip of the stem, each subtended and usually exceeded by an erect leaf-like bract;

sepals and petals light to deep brownish-purple, narrowly to broadly lanceolate, the upper sepal 4-5 cm. long, the lower pair shorter, fused nearly to the tip; 2 small petals spreading, up to 6.5 cm. long; the third petal (lip) pouch-like, obovoid, 2-3 cm. long, dull white, usually purplish-veined;

fertile stamens 2, the third stamen sterile and petal-like, up to 10 mm. long, ovate, yellowish-white and purple-spotted.

Fruits

Capsule.