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PubMed1983

Examples of poisonous plants in Israel of importance to animals and man.

Several plants causing poisoning in herbivores in Israel have an association with human health. Ferula communis (giant fennel) contains a potent anticoagulant and induces severe haemorrhagic diathesis in grazing ewes, or similar changes in utero in lambs. These and other teratogenic changes have been seen in babies from mothers receiving the anticoagulant warfarin during pregnancy. The Ferula interaction in sheep may be used as a model to study this embryotoxicity in man. Ammi majus (bishops weed) causes severe ophthalmic changes, in particular pigmentary retinopathy in photosensitized domestic fowl. The photoactive principle is currently used in the treatment of psoriasis in man, and such patients should be examined for possible ocular toxicity. Trigonella foenum-graecum (fenugreek) caused myopathy in ruminants and is ingested by certain ethnic groups. Oxalis pes-caprae (Bermuda buttercup) causes large-scale oxalate poisoning in sheep and is avidly eaten by children.

Animals↗
PubMed1999

Ponderosa pine and broom snakeweed: poisonous plants that affect livestock.

Ponderosa pine (Pinus ponderosa) and the snakeweeds (Gutierrezia sarothrae and G. microcephala) are two groups of range plants that are poisonous to livestock. Ponderosa pine causes late-term abortions in cattle, and the snakeweeds are toxic and also cause abortions in cattle, sheep, and goats. Research is underway at the USDA-ARS-Poisonous Plants Research Laboratory to better understand livestock poisonings caused by grazing ponderosa pine needles and the snakeweeds and to provide methods of reducing losses to the livestock and supporting industries. This review includes the history of the problem, a brief description of the signs of poisoning, the research, to identify the chemical toxins, and current management practices on prevention of poisonings.

Abietanes↗
PubMed1995

The Queensland Poisonous Plants Committee: its history and functions.

The Queensland Poisonous Plants Committee was established in 1937 with Professor HR Seddon as chairman. It has functioned since that year, interrupted by two periods of inactivity in 1951-9 and 1962-8. Professor Seddon, first Dean of the Queensland Veterinary School, and Dr. Selwyn Everist, Queensland Government Botanist after the Second World War, provided the main impetus for committee activities in its early and middle years, respectively. The strength of the body has been its multi-disciplinary approach using contributions from veterinarians, chemists and botanists. The research work of the committee members and their associates has provided most of our current knowledge of the toxins and effects of poisonous plants in Queensland. Much of the information generated is of international significance. In equal partnership with the United States Department of Agriculture, the committee initiated a series of international symposia on plant poisoning of animals, hosting the second. This group held its 4th gathering of world authorities in the field in 1993. The committee's activities have long influenced the veterinary profession in Australia through the close involvement of its members in undergraduate and post-graduate teaching in the Queensland Veterinary School since 1951. The present committee has members from the Departments of Primary Industries, Health, and Environment and Heritage, CSIRO and the University of Queensland.

History, 20th Century↗
PubMed1957

Poisonous plants.

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Plant Poisoning↗
PubMed1956

Poisonous plants.

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Plant Poisoning↗