| 释义 |
thoroughwort|ˈθʌrəwɜːt|
[f. thorough prep. or adv. + wort, after thoroughwax.]
a. A North American composite plant, Eupatorium perfoliatum, having opposite leaves, each pair united at the base so that the stem appears to grow through them (connate-perfoliate), and large corymbs of numerous white flowers; valued for its tonic properties; also called boneset or crosswort. Also used as a name for other species of Eupatorium.
1814J. Bigelow Florula Bostoniensis 190 Thoroughwort..has acquired great medicinal reputation. 1828in Webster. 1842[see number six s.v. number n. 19]. 1845–50A. H. Lincoln Lect. Bot. 185 Florets tubulous, without rays; as, boneset, or thoroughwort (Eupatorium). 1857Gray First Lessons Bot. (1866) 100 Cases of real leaves growing together.., those of the common Thorough-wort, and the upper pairs in Woodbines or Honeysuckles. 1893F. P. Humphrey New Eng. Cactus 27 Aromatic herbs, pennyroyal, thoroughwort, and catnip. 1906Harper's Mag. Oct. 712 The boggy place where she came..for..the wild marsh-marigold, good for greens, thoroughwort, and the root of the sweet-flag. 1968Peterson & McKenny Field Guide to Wildflowers 46 The thoroughworts..are composites of late summer and fall with numerous small fuzzy heads in rounded or flat-topped clusters.
†b. = thoroughwax. Obs. rare—1.
1597Gerarde Herbal, Table, Throughwoort and his kinds. |