adder's tongue

Thesaurus

Noun

1.

adder's tongue - ferns with fertile spikes shaped like a snake's tongueadder's tongue fernfern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by sporesgenus Ophioglossum, Ophioglossum - the type genus of the fern family OphioglossaceaeOphioglossum pendulum, ribbon fern - epiphytic fern with straplike usually twisted fronds of tropical Asia and Polynesia and America