| 单词 | perforate st john's-wort |
| 释义 | > as lemmasperforate St John's-wort perforate St John's-wort n. a perennial herbaceous hypericum having leaves dotted with translucent oil glands, Hypericum perforatum, native to Europe and Asia and introduced elsewhere, and widely used in herbal medicine; (in early use also, usually with distinguishing word) †any of several other hypericums having such leaves, esp. H. humifusum (obsolete). ΚΠ 1769 J. Wallis Nat. Hist. Northumberland I. 203 Small, procumbent perforate St. John's-wort is less common. 1775 H. Rose tr. C. Linnaeus Elements Bot. xi. 381 Hypericum perforatum, perforate St. John's wort. 1863 Trans. Hawick Archæol. Soc. 64/1 This peculiarity [sc. leaves perforated with small translucent dots or holes] is best seen in the Common or Perforate St John's Wort, abundant on scaurs and by hedge sides in dry barren localities. 1964 E. Salisbury Weeds & Aliens (ed. 2) iv. 88 Amongst the weeds proclaimed as noxious in Australia, may be cited Perforate St. John's Wort, Ragwort, Field Convolvulus, and Thanet Cress. 2009 J. Bruton-Seal & M. Seal Backyard Med. 159 (caption) When the light shines through the leaves of perforate St John's wort, the oil glands look like holes. < as lemmas |
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