| 单词 | water fern |
| 释义 | > as lemmaswater fern water fern n. (a) any of various ferns often found growing near water, as (originally) the royal fern, Osmunda regalis, and (in later use) members of the genera Blechnum and Histiopteris; (b) any aquatic fern, including those of the genera Azolla and Salvinia (family Salviniaceae), which have floating leaves; esp. the widespread and sometimes invasive A. filiculoides. [Compare Dutch watervaren , French feuchier aquatique , and post-classical Latin filix aquatica (all cited in the 1557 French version of the herbal of R. Dodoens, in the passage translated in quot. 1578, but not in the underlying Dutch text of 1554).] ΚΠ 1578 H. Lyte tr. R. Dodoens Niewe Herball iii. lxi. 402 We may cal it in English Osmonde the Waterman, Waterferne, and Saint Christophers herbe. 1762 London Mag. May 240/1 Yet in this plain there are abundance of a sort of birds which nestle among water ferns. 1829 A. Eaton Man. Bot. (ed. 5) Gloss. Hydropterides, Water fern... Isoetes, azolla and salvina are placed here. 1860 Gardener's Monthly Oct. 317/2 Ceratopteris thalictroides,—the Water Fern; most interesting. 1998 N. Romanowski Aquatic & Wetland Plants 21 Soft waterfern (B[lechnum] minus) is found in wet to waterlogged areas around streams and swamps in forested places from Queensland through south-eastern Australia, and in New Zealand. 2011 Daily Tel. 28 Apr. 2/6 Most of the choking weeds were introduced from the Far East as ornaments for gardens. They include floating pennywort, water fern, Japanese knotweed, [etc.]. < as lemmas |
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