Astragalus canadensis (Scientific name)

General poisoning notes:

Cattle have been fatally poisoned when fed on rangeland containing Canadian milk-vetch (Astragalus canadensis). Experiments with sheep indicated that plant material must contain NO2 at 250 mg/kg of body weight to produce toxic responses and 275 mg/kg body weight for a lethal dose. In week-old chicks, the LD-50 = 2 g of plant ingested (Williams and James 1975).

References:

  • Williams, C., James, L. F. 1975. Toxicity of nitro-containing Astragalusto sheep and chicks. J. Range Manage., 28: 260-263.

Nomenclature:

Scientific Name:
Astragalus canadensis L.
Vernacular name(s):
Canadian milk-vetch
Scientific family name:
Leguminosae
Vernacular family name:
pea

Go to ITIS*ca for more taxonomic information on: Astragalus canadensis

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

  • Alberta
  • British Columbia
  • Manitoba
  • Northwest Territories
  • Ontario
  • Quebec
  • Saskatchewan

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: Astragalus canadensis - Google Search

Toxic parts:

  • flowers
  • leaves

References:

  • Williams, C., James, L. F. 1975. Toxicity of nitro-containing Astragalusto sheep and chicks. J. Range Manage., 28: 260-263.

Toxic plant chemicals:

  • 3-nitropropionic acid

References:

  • Williams, C., James, L. F. 1975. Toxicity of nitro-containing Astragalusto sheep and chicks. J. Range Manage., 28: 260-263.

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:

References:

  • Williams, C., James, L. F. 1975. Toxicity of nitro-containing Astragalusto sheep and chicks. J. Range Manage., 28: 260-263.

Sheep

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