Yellow Star-thistle (Common name)

General poisoning notes:

Yellow star-thistle (Centaurea solstitialis) has the same toxic effect on horses as Russian thistle, which is more toxic. Chewing disease becomes incurable once clinical signs are present (Cordy 1987). See the general notes under Russian thistle.

References:

  • Cordy, D. R. 1978. Centaurea species and equine nigropallidal encephalomalacia. Pages 327-336 in Keeler, R. F., Van Kampen, K. R., James, L. F., eds. Effects of poisonous plants on livestock. Academic Press, New York, N.Y., USA. 600 pp.

Nomenclature:

Scientific Name:
Centaurea solstitialis L.
Vernacular name(s):
yellow star-thistle
Scientific family name:
Compositae
Vernacular family name:
composite

Go to ITIS*ca for more taxonomic information on: Centaurea solstitialis

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
  • Ontario
  • 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: yellow star-thistle - Google Search

Toxic parts:

  • all parts
  • leaves
  • stems

References:

  • Cordy, D. R. 1978. Centaurea species and equine nigropallidal encephalomalacia. Pages 327-336 in Keeler, R. F., Van Kampen, K. R., James, L. F., eds. Effects of poisonous plants on livestock. Academic Press, New York, N.Y., USA. 600 pp.

Toxic plant chemicals:

  • unknown chemical

References:

  • Cordy, D. R. 1978. Centaurea species and equine nigropallidal encephalomalacia. Pages 327-336 in Keeler, R. F., Van Kampen, K. R., James, L. F., eds. Effects of poisonous plants on livestock. Academic Press, New York, N.Y., USA. 600 pp.

Animals/Human Poisoning:

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

Horses

General symptoms of poisoning:

References:

  • Cordy, D. R. 1978. Centaurea species and equine nigropallidal encephalomalacia. Pages 327-336 in Keeler, R. F., Van Kampen, K. R., James, L. F., eds. Effects of poisonous plants on livestock. Academic Press, New York, N.Y., USA. 600 pp.

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