WordNet sense 1 (fern of North Africa and Azores and Canary Islands):

Pteris serrulata, spider fern

WordNet sense 2 (epiphytic fern found in lowland forests of tropical America):

grass fern, Vittaria lineata

WordNet sense 3 (epiphytic fern with straplike usually twisted fronds of tropical Asia and Polynesia and America):

Ophioglossum pendulum