Cypripedium reginae

Family (Traditional)Orchidaceae
Species:Cypripedium reginae Walter
Common NameShowy Ladys Slipper
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: June; Reproductive Phenology: July; Leaf Arrangement: alternate; Leaf Arrangement: opposite; Leaf Arrangement: subopposite; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Type: broadleaf; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Pollinium; Base Flower Color: Pink; Base Flower Color: White; Carpel Number/Pistil: 1; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: solitary; Ovary Position: Inferior; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 13+; Perianth Present: Yes; Petal Fusion: No; Petal Number: 3; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Parietal; Sepal Fusion: No; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 2; Tepal Fusion: No; Tepal Number: 6
C value 10
StatusNative; EMP (FACW) (NWPL); TN[S1] KY[SX] (State Rank); G4G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim


SynonymFull Citation
Cypripedium spectabile Cypripedium spectabile

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Claiborne (TN), Johnson (TN), Union (TN)

Herbaria represented by specimen data listed below: APSC, BOON, TENN

Range of years during which specimens were collected: -

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0073053 Claiborne Tennessee
Cypripedium reginae
TENN-V-0073049 Claiborne Tennessee
Cypripedium reginae
TENN-V-0073052 Claiborne Tennessee
Cypripedium reginae
TENN-V-0073055 Union Tennessee
Cypripedium reginae
TENN-V-0073054 Johnson Tennessee
Cypripedium reginae
008150 Claiborne Tennessee
Cypripedium reginae
APSC0035357 Claiborne Tennessee
Cypripedium reginae
TENN-V-0073050 Claiborne Tennessee
Cypripedium reginae
TENN-V-0073051 Claiborne Tennessee
Cypripedium reginae
APSC0035359 Claiborne Tennessee
Cypripedium reginae
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Plant Photos

Cypripedium reginae - Dwayne Estes
Cypripedium reginae - Dwayne Estes
Cypripedium reginae - Dwayne Estes
Cypripedium reginae - Dwayne Estes