Bryonia dioica (white bryony, English mandrake, wild vine, wild hops, tamus,
ladies' seal). A genus of the plant family CUCURBITACEAE. Perennial herbaceous plant,
climbing by tendrils, leaves five-lobed, flowers greenish-white with male and female
forms. Fruit is a juicy red berry, the size of a pea, containing three to six large,
Animals most affected
Pigs, poultry, (cattle, horses, dogs).
Poisoning is rare. Ingestion of the red berries (pigs, poultry), of the plant itself
or of fodder which is highly contaminated with the plant.
Contains irritant substances (including the glycosides bryonin, bryonicine, bryonidin).
The whole plant is toxic, especially the fruit and the roots. Toxicity or potency
is not reduced by drying. Toxic doses not known.
Following Ingestion of a moderate amount
nausea, watery diarrhoea, colic, abdominal pains, polyuria; purgation or constipation
Following ingestion of a large amount
symptoms as above, but with stupor, ataxia, convulsions, opisthotonos, hypothermia,
death in several hours.
In the dog
abdominal pains, diarrhoea, vomiting;
death in 24 hours.
gastroenteritis (occasionally ascites);
petechiae or haemorrhages in the stomach (notably in the pyloric area), intestine
No antidote. Symptomatic care only:
activated vegetable charcoal;