| 单词 | aquatic fern |
| 释义 | aquatic fern (once / 11819311 pages) n WORD FAMILY aquatic fern USAGE EXAMPLESScientists have dropped 1,000 weed-eating weevils into a Somerset canal to tackle an aquatic fern which is causing problems for fish and other wildlife. BBC(Jul 27, 2013) n ferns that grow in water Syn|Hypo|Hyper water fern clover fern, pepperwort any of several water ferns of the genus Marsilea having four leaflets Pilularia globulifera, pillwortEuropean water fern found around margins of bodies of water or in wet acid soil having small globose sporocarps Regnellidium diphyllum, regnellidiumsmall latex-containing aquatic fern of southern Brazil Salvinia auriculata, Salvinia rotundifolia, floating-mossfree-floating aquatic ferns Azolla caroliniana, Carolina pond fern, floating fern, mosquito fernsmall free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe Ceratopteris pteridioides, floating fern, water spriteaquatic fern of tropical America often used in aquariums Ceratopteris thalictroides, floating fernpantropical aquatic fern Marsilea drummondii, common nardoo, nardo, nardooAustralian clover fern Marsilea quadrifolia, water cloverwater fern of Europe and Asia and the eastern United States distinguished by four leaflets resembling clover leaves fern any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores |
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