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Cypripedium montanum
MOUNTAIN LADY'S-SLIPPER

Higher Taxonomy
Family: OrchidaceaeView DescriptionDichotomous Key

Common Name: ORCHID FAMILY
Habit: Perennial herb, terrestrial [growing on other pls], non-green (nutrition from association of roots with fungi) or green, generally from rhizomes or tubers with few to many fleshy to slender roots; cauline leaves +- reduced to sheathing stem bracts or not. Leaf: 1--many, basal to cauline, linear to +- round, alternate to opposite (if only 1 pair), generally sessile. Inflorescence: flowers 1--many, spike or raceme, bracted. Flower: bisexual, bilateral, in bud generally rotating 180° by twisting ovary (position of parts indicated after twisting); sepals generally 3, generally free, generally petal-like, uppermost generally erect, lateral with chin- or spur-like projection (mentum) or not; petals 3, 1 (lip) different, spurred or not; stamens generally 1 (3 in Cypripedium, 2 functional, 1 a staminode), fused with style, stigma into column, pollen generally lumped, generally removed as unit by insect; ovary inferior, 1-chambered, placentas 3, parietal, stigma 3 lobed, generally under column tip. Fruit: capsule. Seed: many, minute.
Genera In Family: +- 800 genera, +- 25000 species: especially tropics (worldwide except Antarctica). Many cultivated for ornamental, especially Cattleya, Cymbidium, Epidendrum, Oncidium, Paphiopedilum; Vanilla planifolia Andrews fruits used to flavor food. Note: Platanthera may be paraphyletic without inclusion of Piperia (Bateman et al. 2009 Ann Bot 104:431--445); study needed.
eFlora Treatment Author: Ronald A. Coleman, Dieter H. Wilken & William F. Jennings, except as noted
Scientific Editor: Ronald A. Coleman, Thomas J. Rosatti.
Genus: CypripediumView DescriptionDichotomous Key

Common Name: LADY'S-SLIPPER
Stem: often puberulent above. Leaf: cauline, lanceolate to ovate. Inflorescence: flowers 1--20; bracts +- leaf-like. Flower: lower sepals +- united [free], pendent behind lip; lateral petals downcurved to spreading, +- like upper sepal, twisted or not, lip pouch-like, generally obovoid, mouth +- puckered, margin inrolled; column curved over lip mouth, functional stamens 2, staminodes 1. Fruit: pendent to spreading, ribbed.
Species In Genus: +- 35 species: temperate North America, Eurasia; some cultivated for ornamental. Etymology: (Greek: Venus foot, from lip shape)

Cypripedium montanum Lindl.
NATIVE
Habit: Plant 25--70 cm. Leaf: 4--6, alternate, 5--18 cm, elliptic to ovate. Inflorescence: open; flowers generally 1--3. Flower: upper sepal 3--6 cm, lanceolate, twisted or wavy, red- to dark-brown (green); lateral petals 25--60 mm, narrow-lanceolate, downcurved, twisted, lip 20--30 mm, white, +- red-striped below or not; staminode 8--12 mm, yellow to yellow-green, red- to purple-spotted.
Ecology: Moist areas, dry slopes, mixed-evergreen or conifer forest; Elevation: 200--2200 m. Bioregional Distribution: NW, CaR, n&c SN, sw SnFrB, MP; Distribution Outside California: to Alaska, Montana, Wyoming. Flowering Time: Mar--Jun
eFlora Treatment Author: Ronald A. Coleman, Dieter H. Wilken & William F. Jennings
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Cypripedium fasciculatum
Next taxon: Cypripedium parviflorum var. makasin

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botanical illustration including Cypripedium montanum

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Citation for this treatment: Ronald A. Coleman, Dieter H. Wilken & William F. Jennings 2016. Cypripedium montanum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=21987, accessed on February 11, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 11, 2016.


Cypripedium montanum
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© 2013 Barry Rice
Cypripedium montanum
click for enlargement
© 2013 Barry Rice
Cypripedium montanum
click for enlargement
© 2013 Barry Rice
Cypripedium montanum
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© 2009 Keir Morse
Cypripedium montanum
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© 2012 Barry Rice
Cypripedium montanum
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© 2000 California Academy of Sciences

More photos of Cypripedium montanum in CalPhotos


Geographic subdivisions for Cypripedium montanum:
NW, CaR, n&c SN, sw SnFrB, MP;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.