Northern Prairie Wildlife Research Center


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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.

Map key

Previous Section -- Cypripedium candidum Muhl. -- White ladyslipper
Return to Family -- Orchidaceae - The Orchid Family
Next Section -- Liparis loeselii (L.) Rich.

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