Calla palustris (Scientific name)

General poisoning notes:

Wild calla (Calla palustris) is a native plant that grows in swamps and marshes through much of Canada. Calcium oxalates occur, which can cause severe irritation of the mouth and throat. No cases of livestock poisoning are found in the literature, but the potential for poisoning is present. Humans are also at risk from this plant (Kingsbury 1964, Lampe and McCann 1985).

References:

  • Lampe, K. F., McCann, M. A. 1985. AMA Handbook of poisonous and injurious plants. American Medical Assoc. Chicago, Ill., USA. 432 pp.

Nomenclature:

Scientific Name:
Calla palustris L.
Vernacular name(s):
wild calla
Scientific family name:
Araceae
Vernacular family name:
arum

Go to ITIS*ca for more taxonomic information on: Calla palustris

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
  • Labrador
  • Manitoba
  • New Brunswick
  • Newfoundland
  • Northwest Territories
  • Nova Scotia
  • Ontario
  • Prince Edward Island
  • Quebec
  • Saskatchewan
  • Yukon Territory

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: Calla palustris - Google Search

Notes on Poisonous plant parts:

All parts of the plant contain calcium oxalate crystals, which can cause irritation of the mouth and throat (Lampe and McCann 1985).

Toxic parts:

  • leaves
  • rhizome
  • roots
  • stems

References:

  • Lampe, K. F., McCann, M. A. 1985. AMA Handbook of poisonous and injurious plants. American Medical Assoc. Chicago, Ill., USA. 432 pp.

Toxic plant chemicals:

  • oxalate

References:

  • Lampe, K. F., McCann, M. A. 1985. AMA Handbook of poisonous and injurious plants. American Medical Assoc. Chicago, Ill., USA. 432 pp.

Animals/Human Poisoning:

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

Cattle

Humans

General symptoms of poisoning:

Notes on poisoning:

Mouth and throat irritation, accompanied by pain and swelling, occurs upon chewing of plant parts. The insoluble oxalates do not produce systemic poisoning in humans. Washing or heating the rhizome can inactivate the oxalates. In northern Europe the ground rhizome is used as flour for bread (Frohne and Pfander 1983, Lampe and McCann 1985).

References:

  • Lampe, K. F., McCann, M. A. 1985. AMA Handbook of poisonous and injurious plants. American Medical Assoc. Chicago, Ill., USA. 432 pp.

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