Large Yellow Lady's Slipper
(Cypripedium pubescens var. pubescens)
Other common names:
Larger Yellow Lady's Slipper|
Other scientific names:
Cypripedium furcatum, Cypripedium pubescens
Orchid Family (Orchidaceae)
Orchids, Lady's Slippers
Lady's Slipper flower form, bright yellow.
Small Yellow Lady's Slipper (Cypripedium parviflorum) - Smaller; purplish petals behind the "slipper".
Small White Lady's Slipper (Cypripedium candidum) - Small, white flowers; greenish petals.
Hybrid Lady's Slipper (Cypripedium parviflorum X C. candidum) - Small, white flowers; purplish petals.
Summer; Yellow; Irregular flowers; Bright yellow, pouch shape. Petals (behind the "slipper") are green (Small Yellow Lady's Slipper (Cypripedium parviflorum) has reddish petals). Late spring - early summer.
20-45 cm (8-18 in)
Forests, Fields and Open Areas, Wet Areas; Moist woods, bogs.
Newcomb's Wildflower Guide: 38
Peterson's Field Guide to Wildflowers: 104
ROM Field Guide to Wildflowers of Ontario: 90
Uncommon, but common compared to other Lady's Slipper orchids. But in some places it is extremely common.
There are two varieties of this orchid: Large Yellow Lady's Slipper and Small Yellow Lady's Slipper (Cypripedium parviflorum). When you find this orchid, do not disturb it. DO NOT transplant it - it will likely not survive.
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