Cypripedium californicum
Cypripedium montanum
California lady slipper
mountain lady slipper
alternate, 5–10, 5–15 × 2–6 cm, grading into bracts in the inflorescence.
alternate, 4–6, 8–17 × 4–10 cm.
elongated, 3–20-flowered.
elongated, 1–3-flowered.
dorsal sepal elliptic, 1.5–2 × 1–1.5 cm; yellowish green to pale brownish yellow;
lateral sepals connate nearly to tip, similar in color and shape to dorsal sepal;
petals lanceolate, 1–2 × 0.3–0.5 cm, yellow to yellowish green;
lip 1.5–2 × 1–1.5 cm, white occasionally with pink.
dorsal sepal lanceolate to ovate, 3–6 × 1–1.5 cm, green suffused with purple;
lateral sepals connate almost to tip, similar in color and shape to dorsal sepal;
petals linearlanceolate and twisted, 4–7 × 0.3–0.6 cm, purple;
lip 2–3 × 1.2–1.7 cm, white with purple spots inside.
Cypripedium californicum
Cypripedium montanum
Small streams, riversides, seepage slopes, usually on serpentine soils. Flowering Apr–Jul. 200–1600m. CR, Sisk. CA. Native.
Usually endemic to serpentine-derived soils, California lady slipper is often found growing with the carnivorous plant Darlingtonia californica in seepage slopes and small streams.
Mixed conifer forests, open shrubby woodlands, roadsides. Flowering Apr–Jul. 50–2200m. BW, Casc, Col, CR, ECas, Sisk, WV. CA, ID, WA; north to AK. Native.
James Riser
James Riser
- 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
