Cypripedium fasciculatum

Plants erect, 6–35 cm in flower, taller in fruit; inflorescences nodding in flower, erect in fruit. Leaves 2, initially near middle of stem, subopposite, wide-spreading, distal portion elongating greatly in fruit; blade elliptic to ovate-orbiculate, 4–12 × 2.5–7.5 cm. Flowers (1–)2–4; sepals dull yellow, marked and suffused often intensely with reddish brown or dark purple; dorsal sepal lanceolate, 13–25 × 3–8 mm; lateral sepals connate, synsepal 11–23 × 4–9 mm; petals porrect-spreading, same color as sepals, flat, ovate-lanceolate to lance-acuminate, 10–23 × 6–17 mm; lip color of sepals, usually less intensely marked, mostly obovoid, 8–14(–25) mm, orifice basal, 4–5 mm; staminode ellipsoid to oblong. 2n = 20.

Phenology: Flowering Apr–Aug.
Habitat: Moist to dry coniferous forests and thickets
Elevation: 0–3200 m

Distribution

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• Legacy Map

Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

Brownell, V. R. and P. M. Catling. 1987. Notes on the distribution and taxonomy of Cypripedium fasciculatum Kellogg ex Watson (Orchidaceae). Lindleyana 2: 53–57.

Lower Taxa

None.