| 单词 | royal osmund |
| 释义 | royal osmund (extremely rare) n WORD FAMILY royal osmund n large deeply rooted fern of worldwide distribution with upright bipinnate compound tufted fronds Syn|Hyper French bracken, Osmunda regalis, ditch fern, king fern, royal fern flowering fern, osmund any fern of the genus Osmunda: large ferns with creeping rhizomes; naked sporangia are on modified fronds that resemble flower clusters |
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