Rattlesnake fern Meaning, Definition & Usage
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noun American fern whose clustered sporangia resemble a snake's rattle
Botrychium virginianum.
WordNet
Definitions
(Bot.) , a common American fern (Botrychium Virginianum ) having a triangular decompound frond and a long-stalked panicle of spore cases rising from the middle of the frond.
