General poisoning notes:

Showy lady's-slipper (Cypripedium reginae) is a native orchid found in eastern Canada. The plant can cause dermatitis in sensitive individuals. The symptoms are similar to those of poison-ivy (Rhus spp.). See additional information under general notes of Cypripedium acaule.

References:

Reddoch, A. H., Reddoch, J. M. 1984. Warning: Lady's-slippers can be hazardous to your health. Plant Press, 2(1): 10.

Nomenclature:

Scientific Name: Cypripedium reginae Walt.

Vernacular name(s): showy lady's-slipper

Scientific family name: Orchidaceae

Vernacular family name: orchid

Go to ITIS*^ca for more taxonomic information on: Cypripedium reginae

References:

Agriculture Quebec. 1975. Noms des maladies des plantes du Canada/ Names of plant diseases in Canada. , Quebec City, Que., Canada. 288 pp.

Alex, J. F., Cayouette, R., Mulligan, G. A. 1980. Common and botanical names of weeds in Canada/Noms populaire et scientifiques des plantes nuisibles du Canada. Revised. Agric. Can. Publ., Ottawa, Ont., Canada. 132 pp.

Bailey, L. H., Bailey, E. Z. 1976. Hortus third. Revised. MacMillan, New York, N.Y., USA. 1290 pp.

Scoggan, H. J. 1978, 1979. The flora of Canada. Nat. Mus. Nat. Sci. (Ottawa) Publ. Bot. 7(1)-7(4). 1711 pp.

Van Wijk, H. L. 1911. A dictionary of plant names. Martinus Nijhoff, The Hague, The Netherlands. 1444 pp.

Victorin, M. 1964. Flore Laurentienne. 2nd ed. Univ. Montreal, Montreal, Que., Canada. 952 pp.

Geographic Information

Manitoba
New Brunswick
Newfoundland
Nova Scotia
Ontario
Prince Edward Island
Quebec

References:

Bailey, L. H., Bailey, E. Z. 1976. Hortus third. Revised. MacMillan, New York, N.Y., USA. 1290 pp.

Boivin, B. 1966, 1967. Énumération des plantes du Canada. Provencheria 6. Nat. Can. (Que.) 93: 253-274; 371-437; 583-646; 989-1063. 94: 131-157; 471-528; 625-655.

Image or illustration

showy lady's-slipper:

Images: images.google.com

Toxic parts:

leaves
stems

References:

Reddoch, A. H., Reddoch, J. M. 1984. Warning: Lady's-slippers can be hazardous to your health. Plant Press, 2(1): 10.

Toxic plant chemicals:

cypripedin

References:

Reddoch, A. H., Reddoch, J. M. 1984. Warning: Lady's-slippers can be hazardous to your health. Plant Press, 2(1): 10.

Animals/Human Poisoning:

Note: When an animal is listed without additional information, the literature (as of 1993) contained no detailed explanation.

Humans

General symptoms of poisoning:

blisters, weeping

References:

Reddoch, A. H., Reddoch, J. M. 1984. Warning: Lady's-slippers can be hazardous to your health. Plant Press, 2(1): 10.