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| 单词 | purple nut grass |
| 释义 | > as lemmaspurple nut grass purple nut grass n. a widely naturalized sedge, Cyperus rotundus, whose roots form nutlike tubers and which is a serious weed in tropical regions; cf. nut grass n. ΚΠ 1988 New Scientist 28 July 39/3 As the waters receded, they collected annual plants such as chamomile and tubers of purple nut-grass (Cyperus rotundus). 2000 A. M. T. Moore et al. Village on Euphrates iii. 71 These [swamps] can reasonably be expected to support extensive stands of..the common reed..and, in shallower water and on mud flats, the sea club-rush, and the purple nut-grass, Cyperus rotundus. < as lemmas |
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