| Noun | 1. | ribbon fern - fern of North Africa and Azores and Canary Islandsfern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores genus Pteris, Pteris - large genus of terrestrial ferns of tropics and subtropics; sometimes placed in family Polypodiaceae |
| 2. | ribbon fern - epiphytic fern found in lowland forests of tropical Americafern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores genus Vittaria, Vittaria - tropical epiphytic ferns with straplike fronds | |
| 3. | ribbon fern - epiphytic fern with straplike usually twisted fronds of tropical Asia and Polynesia and America adder's tongue, adder's tongue fern - ferns with fertile spikes shaped like a snake's tongue |