| 单词 | black root |
| 释义 | > as lemmasblack root black root n. (a) any of various North American medicinal plants with dark-coloured roots; esp. a kind of speedwell, Veronicastrum virginicum, native to moist ground in the eastern United States; (also) the root (or a preparation of the root) of any of these plants; (b) any of various plant diseases accompanied by a blackening of the roots. ΘΚΠ the world > plants > particular plants > plants and herbs > non-British plants or herbs > [noun] > American or West Indian masterwort1523 hogweed1707 black root1709 many-seed1750 Martynia1753 Maranta1754 hog meat1756 iron1756 Evolvulus1764 zebra plant1826 turkey-flower1843 vriesia1843 Spanish needles1846 turkey-blossom1849 horse poison1851 St Martin's herb1860 goatweed1864 wake-robin1864 frog-bit1866 herb of St. Martin1866 pipi1866 goatweed1869 cigar-plant1961 1709 W. Byrd Diary 13 Feb. (1941) 4 I sent him some blackroot..for the gripes. 1843 T. Talbot Jrnl. 8 Sept. (1931) 45 We traded some Kooyah or Black root,..a black, sticky, suspicious looking compound, of very disagreeable odor. 1851 C. Cist Sketches & Statistics Cincinnati 211 Concentrated extracts of vegetable medical articles..such as..leptandrin or black-root extracts. 1917 Michigan Crop Rep. July 6 Very heavy rain on June 27th, land nearly all flooded, corn very small, sugar beets have blackroot. 1933 J. K. Small Man. Southeastern Flora 1400 Pterocaulon... Black-root... The thick black root gives this plant its common name. 1988 R. Mabey Compl. New Herbal 112/3 Veronicastrum virginicum... Black root... This is a bitter root which when dried acts as a gentle laxative and liver tonic. 2003 G. Loebenstein & G. Thottappilly Virus & Virus-like Dis. Major Crops xvii. 428 ‘Black root’ is a lethal systemic necrosis that affects common bean cultivars. < as lemmas |
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