Cypripedium acaule

Family:ORCHIDACEAE
Species:Cypripedium acaule Aiton
Common Name:Pink Lady's Slipper; Pink Moccasin Flower
Habitat:Acidic forest.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:Pink Lady's Slipper is a native herbaceous perennial in the Orchid family (Orchidaceae). It is native to northeastern Alabama. Pink Lady's Slipper occurs in dry to wet hardwood or mixed pine-hardwood forests. It is a perennial with thick fibrous roots and a short rhizome. Only two basal leaves are produced. The leaves are elliptic to ovate in outline, ribbed, entire, and slightly glandular pubescent. Flowers are resupinate and solitary on a leafless glandular scape. A floral bract arches over the flower. The flowers have 3 greenish or brownish sepals, 2 of which are united behind the lip and the third is erect. Two twisted brownish or greenish petals extend to either side of the lip. The third petal forms an inflated lip. The lip is pink or white in color with darker veins. Pink Lady's Slipper is pollinated by bees that enter the lip through a longitudinal slit. Once inside the bees are guided by hairs towards exit openings located below masses of pollen. The bee passes under the stigma on the way to the exit and if it bears any pollen from a visit to another flower it is removed. The bee receives no reward for visiting the flower. Pink Lady's Slipper is listed as a S3 species in Alabama (typically 21 to 100 occurrences, limited acreage, or miles of stream in the state), and Globally as a G5 species (demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery). Pink Lady's Slipper are available from some nurseries. Like most native orchids they are difficult to grow. They require a mutualistic relationship with fungi in the genus Rhizoctonia. Only purchase plants from nurseries that do not collect plants from the wild.—A. Diamond
Taxonomic Notes:**
Status:Native, FACW (NWI), S3 (State Rank), G5 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyORCHIDACEAE - Orchid family
Genus Cypripedium
Species Cypripedium acaule Aiton - Pink Lady's Slipper; Pink Moccasin Flower

Citation

Citation Cypripedium acaule Aiton, Hort. Kew. 3: 303. 1789.
Basionym: **
Type: **

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Fissipes acaulis  Cypripedium acaule Aiton, Hort. Kew. 3: 303. 1789. 

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; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Blount, Cherokee, Clay, Cleburne, DeKalb, Jackson, Lawrence, Madison

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AMAL, AUA, JSU, SAMF, TROY, UNA, UNAF, UWAL

Range of years during which specimens were collected: 1980 - 2002

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
AMAL00012780 Blount 20 Apr 2002 Brian R. Keener
1986
AMAL
Cypripedium acaule Aiton
JSU113463 DeKalb 9 May 1992 D. D. Spaulding
1539
JSU
Cypripedium acaule Aiton
JSU113458 Cherokee 7 May 1983 C. M. De Fiori
003
JSU
Cypripedium acaule Aiton
AUA_ACC001921 DeKalb 7 MAY 1955 MATSCHKE, GEORGE
AUA
CYPRIPEDIUM ACAULE AITON
JSU113459 Cherokee 6 May 1983 R. D. Whetstone
13086
JSU
Cypripedium acaule Aiton
JSU113471 Jackson 13 May 1973 David Cook
s.n.
JSU
Cypripedium acaule Aiton
AMAL00001297 Madison 14 Oct 1996 S. J. Threlkeld
1058
AMAL
Cypripedium acaule Aiton
JSU113461 Clay 8 May 1981 R. D. Whetstone
10700
JSU
Cypripedium acaule Aiton
JSU113467 DeKalb 15 May 1996 R. D. Whetstone
17554
JSU
Cypripedium acaule Aiton
JSU113462 DeKalb 20 May 1992 J. M. Ballard
830
JSU
Cypripedium acaule Aiton
AUA_ACC032595 Cleburne 11 MAY 1974 SAUNDERS, M. R.
190
AUA
CYPRIPEDIUM ACAULE AITON
UWAL0005023 Blount 20 Apr 2002 Keener, Brian R.
1986
UWAL
Cypripedium acaule Ait.
JSU113465 DeKalb 28 Apr 1956 Maxine Blessing
s.n.
JSU
Cypripedium acaule Aiton
UWAL0033794 Clay 26 Apr 2015 Keener, Brian R.
8803
UWAL
Cypripedium acaule Aiton
JSU113460 Cherokee 6 May 1983 C. F. Nixon
95
JSU
Cypripedium acaule Aiton
SAMF0000730 Blount 20 Apr 2002 Keener, Brian R.
1986
SAMF
Cypripedium acaule Aiton
UWAL0013447 Lawrence 27 Apr 2012 England, J. Kevin
3353
UWAL
Cypripedium acaule Aiton
UNA00064837 Blount 20 Apr 2002 Brian R. Keener
1986
UNA
Cypripedium acaule Ait.
AUA_ACC067479 Blount 20 APR 2002 KEENER, BRIAN R.
1986
AUA
CYPRIPEDIUM ACAULE AITON
JSU113470 Jackson 25 Apr 1973 R. D. Whetstone
RDW-1113
JSU
Cypripedium acaule Aiton
AMAL00010010 DeKalb 5 Apr 1995 C. D. Pearson
032
AMAL
Cypripedium acaule Aiton
JSU113468 Jackson 3 Jul 1998 K. R. Brodeur
1001
JSU
Cypripedium acaule Aiton
TROY000026560 Blount 20 Apr 2002 Brian R. Keener
1986
TROY
Cypripedium acaule Aiton
TROY000048086 Clay 26 Apr 2015 Brian R. Keener
8803
TROY
Cypripedium acaule Aiton
AUA_ACC059057 DeKalb 15 APR 1999 FARMER, C.
11
AUA
CYPRIPEDIUM ACAULE AITON
TROY000026561 DeKalb 15 Apr 1956 Barbara Kimsey
s.n.
TROY
Cypripedium acaule Aiton
UNAF0001574 DeKalb 04 Sep 1983 Bobo, Wade
s.n.
UNAF
Cypripedium acaule Aiton
UNA00008473 DeKalb 14 May 1981 John H. Wiersema
2138
UNA
Cypripedium acaule Ait.
JSU113469 Jackson 25 Apr 1973 R. D. Whetstone
s.n.
JSU
Cypripedium acaule Aiton
AUA_ACC047143 Jackson 25 JUN 1983 DODD, J. K.
36
AUA
CYPRIPEDIUM ACAULE AITON
JSU113464 DeKalb 23 Oct 1997 K. R. Brodeur
99
JSU
Cypripedium acaule Aiton
JSU113466 DeKalb 15 Apr 1956 Barbara Kimsey
s.n.
JSU
Cypripedium acaule Aiton
UNA00008483 DeKalb _ May 1891 Charles Mohr
s.n.
UNA
Cypripedium acaule Ait.
AUA_ACC071580 Blount 20 APR 2002 KEENER, BRIAN R.
1986
AUA
CYPRIPEDIUM ACAULE AITON
JSU113472 Jackson 25 Apr 1973 R. D. Whetstone
RDW-1113
JSU
Cypripedium acaule Aiton
AUA_ACC058785 Clay 3 MAY 1981 CAUSEY, ANN S.
2133
AUA
CYPRIPEDIUM ACAULE AITON
UNA00008478 Jackson 09 May 1980 Russell A. Meigs
484
UNA
Cypripedium acaule Ait.
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