Species of flowering plant in the orchid family Orchidaceae
Cypripedium arietinum
Conservation status
Near Threatened (IUCN 3.1)
Vulnerable (NatureServe)[1]
Scientific classification
Kingdom:
Plantae
Clade:
Tracheophytes
Clade:
Angiosperms
Clade:
Monocots
Order:
Asparagales
Family:
Orchidaceae
Subfamily:
Cypripedioideae
Genus:
Cypripedium
Species:
C. arietinum
Binomial name
Cypripedium arietinum
R.Br. (1813)
Synonyms
Criosanthes arietina (R. Br.) House (1905)
Criosanthes borealis Raf. (1818)
Arietinum americanum L.C. Beck (1833)
Cypripedium arietinum f. biflorum P.M.Br. (1995)
Cypripedium arietinum, the ram's head lady's slipper,[2] is a rare terrestrial orchid that grows in lightly to heavily shaded areas with calcareous soils. It is characteristic of the alvars around the Great Lakes in North America].[2][3] In Canada, it is found from Quebec to Saskatchewan, plus an isolated population in Nova Scotia, where it grows on gypsum based soils, 330 km away from the nearest population in Maine.[4][5]
Cypripedium arietinum plants in the wild
^Ames, D., P. B. Acheson, L. Heshka, B. Joyce, J. Neufeld, R. Reeves, E. Reimer, and I. Ward. 2005. Orchids of Manitoba: A field guide. Native Orchid Conservation Inc., Winnipeg.
^ abUSDA, NRCS (n.d.). "Cypripedium arietinum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 1 July 2016.
^Catling, P.M.; Brownell, V.R. (1999). "Alvars of the Great Lakes Region". In Anderson, R. C.; Fralish, J. S.; Baskin, J. M. (eds.). Savannas, Barrens and Rock Outcrop Communities of North America. Cambridge: Cambridge University Press. pp. 375–391. ISBN 9780511574627.
^Blaney, S.; Mazerolle, D. (2007). Nova Scotia Provincial Status Report on Ram's-Head Lady Slipper (Cypripredium arietinum R. Br.). Nova Scotia Department of Natural Resources.
^"Cypripedium arietinum". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
and 12 Related for: Cypripedium arietinum information
Cypripediumarietinum, the ram's head lady's slipper, is a rare terrestrial orchid that grows in lightly to heavily shaded areas with calcareous soils...
Cypripedium is a genus of 58 species and nothospecies of hardy orchids; it is one of five genera that together compose the subfamily of lady's slipper...
18, 2022. Barthel, Fiona; Stan, Irina. "Axenic Seed Culture of Cypripediumarietinum" (PDF). New Hampshire Academy of Science. Retrieved March 18, 2022...
lakeside daisy (Hymenoxys acaulis), ram's-head lady's-slipper (Cypripediumarietinum), and dwarf lake iris (Iris lacustris). Also associated with alvars...
endangered species list; these consist of ram's–head lady's slipper (Cypripediumarietinum), olivaceous spike–rush (Eleocharis olivacea), bog adder's–mouth...
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