A clump-forming perennial herb, much grown as a culinary herb and found naturalised on rough ground and by walls and paths. It also occurs as a relic of cultivation. Lowland.
L. officinale was being grown in gardens by 995 (Harvey, 1981) and was first recorded from the wild in 1883 (Orkney). Its overall frequency is probably stable.
Native of Iran and Afghanistan; widely naturalised in Europe, N. America and elsewhere through its use as a herb.
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