grape fern

/greɪp fərn/

Other forms: grape ferns

Definitions of grape fern

1. noun

   a fern of the genus Botrychium having a fertile frond bearing small grapelike clusters of spore cases
   types:

   Botrychium lunaria, common moonwort, moonwort

   of America and Eurasia and Australia

   Botrychium matricariifolium, daisy-leaved grape fern, daisyleaf grape fern

   of North America and Eurasia

   Botrychium multifidum, leathery grape fern

   European fern with leathery and sparsely hairy fronds

   Botrychium virginianum, rattlesnake fern

   American fern whose clustered sporangia resemble a snake's rattle

   type of:

   fern

   any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores