Cypripedium kentuckiense C.F.Reed
Kentucky Lady's Slipper
Facts About
Accepted Synonyms: Cypripedium daultonii
Cypripedium kentuckiense, commonly known as Kentucky Lady's Slipper, is found across the southeastern United States, from Virginia to Texas. It has the largest bloom of any in the Cypripedium genus and produces a large cream to pale yellow pouch-like labellum and up to six large stem leaves. Its sepals and petals are greenish yellow, often spotted with red or brown, and twist away from the labellum in spirals. It is most closely related to Cypripedium parviflorum, but can be distinguished by its less brightly colored labellum. It is usually found in deciduous hardwood forests with acidic, well-drained soils, often in isolated patches. In Virginia, it is known to grow in a forested floodplain.
Cypripedium kentuckiense is considered globally vulnerable, due in large part to its limited range and shrinking habitat.
Pollination
The noctuid moth, Polychrysia morigera and carpenter bees in the genus Xylocopa have been recorded pollinating this orchid.
Ecosystem Type
Forests, woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- alternate
- Number of leaves on stem:
-
- three
- four
- five
- six
- Form of the labellum:
- the labellum is pouch-like
- Labellum outline:
- the labellum is simple
- Main color of labellum:
-
- white
- yellow
- Nectar spur:
- absent
- Inflorescence type:
- the inflorescence has one flower or a pair of flowers
- Labellum characteristics:
- the labellum is saccate
- Labellum length:
- 45–65 mm
- Sepal length:
- 50–120 mm
- Plant height:
- 35–97 cm
-
Flowers
- Floral bract length:
- 80–280 mm
- Flower petal color:
-
- brown
- green
- yellow
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- May
- June
- July
- August
- Flowers per inflorescence:
- 1–2
- Form of the labellum:
- the labellum is pouch-like
- Inflorescence type:
- the inflorescence has one flower or a pair of flowers
- Labellum characteristics:
- the labellum is saccate
- Labellum length:
- 45–65 mm
- Labellum outline:
- the labellum is simple
- Labellum position:
- the flowers are resupinate
- Main color of labellum:
-
- white
- yellow
- Nectar spur:
- absent
- Number of stamens:
- 2
- Orientation of side petals:
- the lateral petals are spreading
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- 50–120 mm
- Sepals fused only to sepals:
- the sepals are fused to each other (not other flower parts), at least near their bases
-
Fruits or seeds
- Fruit length:
- Up to 60 mm
- Fruit width:
- Up to 30 mm
-
Growth form
- Plant height:
- 35–97 cm
- Roots:
- the rhizomes are non-coralloid
- Underground organs:
-
- slender roots
- this plant has a rhizome
- myco-heterotrophic or not:
- the plant is chlorophyllous
-
Leaves
- Leaf arrangement:
- alternate
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 150–240 mm
- Leaf blade length to width ratio:
- 3–1.6
- Leaf blade shape:
-
- lanceolate
- ovate
- Leaf blade width:
- 50–150 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- three
- four
- five
- six
-
Place
- Ecosystem type:
-
- forests
- woodlands
- Habitat:
- terrestrial
- Location:
-
- Alabama
- Arkansas
- Georgia
- Kentucky
- Louisiana
- Mississippi
- Oklahoma
- Tennessee
- Texas
- Virginia
-
Facts and Uses
- Mycorrhiza
- Monitoring
- Propagation
- Restoration
Native to North America
Yes
North American Conservation Status & Distribution
Conservation Status
Conservation and Wetland Status | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Alabama | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Alabama Rank | Highly State Rare |
Alabama Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Arkansas | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Arkansas Rank | State Rare |
Arkansas Status | Species of Concern |
Canadian Status | N/A |
Wetland Status | Upland |
Conservation status for: Georgia | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Georgia Rank | Highly State Rare |
Georgia Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Kentucky | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Kentucky Rank | Highly State Rare |
Kentucky Status | Endangered |
Canadian Status | N/A |
Wetland Status | Upland |
Conservation status for: Louisiana | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Louisiana Rank | Highly State Rare |
Louisiana Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Mississippi | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Mississippi Rank | Highly State Rare |
Mississippi Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Oklahoma | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Oklahoma Rank | Highly State Rare |
Oklahoma Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Tennessee | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Tennessee Rank | State Rare |
Tennessee Status | Endangered |
Canadian Status | N/A |
Wetland Status | Upland |
Conservation status for: Texas | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Texas Rank | Highly State Rare |
Texas Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Virginia | |
---|---|
Global Rank | Vulnerable |
US Status | N/A |
Virginia Rank | Highly State Rare |
Virginia Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |