A European plant of the parsley family with yellowish-green flowers, formerly a widespread weed of cornfields.
圆叶柴胡
Genus Bupleurum, family Umbelliferae: two species, including B. rotundifolium, which is extinct in the wild in Britain
Example sentencesExamples
The conspicuous herbaceous cover of the spruce forests includes the ornamentals monkshood (Aconitum leucostomum), colombine (Aquilegia karelinii), thorow-wax (Bupleurum longifolium) and dragonhead (Dracocephalum integrifolium).
Species lost to the UK in recent years include corncockle, thorow-wax and small bur-parsley.
Origin
Mid 16th century: from thorough 'through' + wax2 (because the stem appears to grow through the leaves).