Solanum tuberosum (edible potato). A member of the plant family SOLANACEAE.
Herbaceous plant with starchy, white underground tubers (the potato), and green aerial
parts (‘fanes'), with leaves and flowers very similar to deadly nightshade.
Animals most affected
Poisoning occurs after ingestion of excessive quantities of green potatoes, old potato
skins, discarded potato haulms or old potatoes exposed to sunlight.
The use of nitrophenols, including dinitroorthocresol, dinoseb, coloured nitrates
(nitres), as anti-sprouting chemicals make the plant extremely toxic to game animals
such as hare, rabbits (see effects compared with those caused by nitrophenols).
Contains the glycoalkaloids solanine, particularly in the skins, sprouting parts
and old or green tubers, in the stems, leaves and the unripe fruit, and solanidine,
a steroidal alkaloid. Solanine has a direct irritant effect, especially on mucous
membranes. It depresses the CNS, the respiratory and motor centres, and inhibits
cholinesterases. Toxic doses not known.
followed by diarrhoea, colic, salivation (viscous saliva).
dullness, lassitude, somnolence, prostration;
mydriasis, swollen eyelids.
Have been described on limbs (ridged skin with crusts).
Non-specific. Symptomatic care only:
gastric demulcents, adsorbents.