Botrychium virginianum

(redirected from Botrypus virginianum)
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Noun1.Botrychium virginianum - American fern whose clustered sporangia resemble a snake's rattleBotrychium virginianum - American fern whose clustered sporangia resemble a snake's rattle
grape fern - a fern of the genus Botrychium having a fertile frond bearing small grapelike clusters of spore cases