| 单词 | Athyrium pycnocarpon |
| 释义 | Athyrium pycnocarpon (extremely rare) n WORD FAMILY Athyrium pycnocarpon n North American fern with narrow fronds on yellowish leafstalks Syn|Hyper Diplazium pycnocarpon, glade fern, narrow-leaved spleenwort, silvery spleenwort 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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