Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
69. Orchidaceae, the Orchid Family
2. Cypripedium L. -- Ladyslipper
3. Cypripedium reginae Walt. -- Showy ladyslipper
Stems 4-10 dm tall, glandular-hirsute. Leaves spreading-ascending,
sheathing at the base, broadly elliptic, 10-25 cm long, 4-12 cm wide, abruptly
acuminate, nearly glabrous to hirsute. Flowers 1 or 2 on a stem, the
subtending leaflike bract 6-12 cm long; sepals and lateral petals white,
sepals 3-4 cm long, the upper sepal broadly elliptic to obovate, obtuse
to rounded, the lateral sepals completely fused to form a single, entire appendage
under the lip, obtuse at the apex; lateral petals broadly to narrowly
lanceolate, obtuse to rounded, about as long as the sepals; lip white,
streaked and spotted with pink or purple, 3-5 cm long; ovary glandular-pubescent,
3.5-5 cm long. Jun--Jul. Bogs, swamps and springs; rare in e ND; (Newf. and
Que. to Man., s to GA, AL, MO and ND).
Showy ladyslipper is the state flower of Minnesota.
Previous Section -- Cypripedium candidum Muhl.
-- White ladyslipper
Return to Family -- Orchidaceae - The
Next Section -- Liparis loeselii (L.) Rich.