Cypress Spurge (Common name)

General poisoning notes:

Cypress spurge (Euphorbia cyparissias) is a naturalized herb found across southern Canada. Ingesting the plant has caused loss of cattle in New York State. This plant is usually avoided by livestock but is ingested if incorporated with hay. The plant is abundant in in some locations in southern Ontario. Some humans are sensitive to the irritant latex and may develop inflammation.

References:

  • Frohne, D., Pfander, H. J. 1983. A colour atlas of poisonous plants. Wolfe Publishing Ltd., London, England. 291 pp.
  • Kingsbury, J. M. 1964. Poisonous plants of the United States and Canada. Prentice-Hall Inc., Englewood Cliffs, N.J., USA. 626 pp.
  • Stahevitch, A. E., Crompton, C. W., Wojtas, W. A. 1988. The biology of Canadian weeds. 85. Euphorbia cyparissias L. Can. J. Plant Sci., 68: 175-191.

Nomenclature:

Scientific Name:
Euphorbia cyparissias L.
Vernacular name(s):
cypress spurge
Scientific family name:
Euphorbiaceae
Vernacular family name:
spurge

Go to ITIS*ca for more taxonomic information on: Euphorbia cyparissias

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

  • British Columbia
  • 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

Images: cypress spurge - Google Search

Notes on Poisonous plant parts:

The toxic compounds are found in the latex and seeds (Frohne and Pfander 1983).

Toxic parts:

  • latex
  • seeds

References:

  • Frohne, D., Pfander, H. J. 1983. A colour atlas of poisonous plants. Wolfe Publishing Ltd., London, England. 291 pp.

Notes on Toxic plant chemicals:

Unknown ingenanes, toxic diterpenes, are found in this plant (Frohne and Pfander 1983).

Toxic plant chemicals:

  • 5-deoxyingenol

References:

  • Frohne, D., Pfander, H. J. 1983. A colour atlas of poisonous plants. Wolfe Publishing Ltd., London, England. 291 pp.

Animals/Human Poisoning:

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

Cattle

General symptoms of poisoning:

Notes on poisoning:

Cattle that have ingested hay containing large amounts of cypress spurge have had diarrhea followed by weakness, collapse, and death (Kingsbury 1964).

References:

  • Kingsbury, J. M. 1964. Poisonous plants of the United States and Canada. Prentice-Hall Inc., Englewood Cliffs, N.J., USA. 626 pp.

Horses

Humans

General symptoms of poisoning:

References:

  • Frohne, D., Pfander, H. J. 1983. A colour atlas of poisonous plants. Wolfe Publishing Ltd., London, England. 291 pp.

Sheep

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