| 单词 | silvery spleenwort |
| 释义 | silvery spleenwort (once / 2954828 pages) n WORD FAMILY silvery spleenwort 1n North American fern with narrow fronds on yellowish leafstalks Syn|Hyper Athyrium pycnocarpon, Diplazium pycnocarpon, glade fern, narrow-leaved spleenwort fern any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores 2n fern with elongate silvery outgrowths enclosing the developing spores Syn|Hyper Athyrium thelypteroides, Deparia acrostichoides 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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