| 释义 |
Definition of black root in English: black rootnoun 1Any of various North American medicinal plants with dark-coloured roots; especially a kind of speedwell, Veronicastrum virginicum, native to moist ground in the eastern United States. 2Any of various plant diseases accompanied by a blackening of the roots.
Origin Early 18th century; earliest use found in William Byrd (1674–1744), landowner and diarist. Definition of black root in US English: black rootnoun 1Any of various North American medicinal plants with dark-coloured roots; especially a kind of speedwell, Veronicastrum virginicum, native to moist ground in the eastern United States. 2Any of various plant diseases accompanied by a blackening of the roots.
Origin Early 18th century; earliest use found in William Byrd (1674–1744), landowner and diarist. |