[Wikipedia] Found in most parts of Europe: Found in most parts of Europe, and also North America, where it was accidentally introduced including in British Columbia, where it is designated a noxious weed under the British Columbia Weed Control Act. It lives in wet places, sand dunes, waste land and hedges.The plant owes its common and scientific name to the long greyish leaves that are reminiscent of a dog's tongue and were once given as a remedy for dog bites. Cynoglossum officinale contains tumorigenic pyrrolizidine alkaloids. It is toxic to cows and is especially dangerous to pasture owners. (contributed by Steve Conger)
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Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2023. Berkeley, California:The Calflora Database
[a non-profit organization].Available: