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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


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.
± 35 species: temperate North America, Eurasia; some cultivated for ornamental. (Greek: Venus foot, from lip shape) [Sheviak 1993 Amer Orchid Soc Bull 62:403]

Key to Cypripedium

1. Lip yellow ..... C. parviflorum var. makasin

1' Lip yellow-green below, purple above, or white

2. Leaves 2, opposite ..... C. fasciculatum

2' Leaves > 2, alternate

3. Upper sepal, lateral petals green to yellow-green ..... C. californicum

3' Upper sepal, lateral petals red- to dark-brown (green) ..... C. montanum


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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