| Noun | 1. potato fern - large Australasian evergreen fern with an edible rhizome sometimes used as a vegetable by indigenous peopleMarattia salicinafern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by sporesgenus Marattia, Marattia - type genus of the Marattiaceae: ferns having the sporangia fused together in two rows | | 2.potato fern - small epiphytic fern of South America with tuberous swellings along rhizomesSolanopteris bifronsfern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by sporesgenus Solanopteris, Solanopteris - tropical American epiphytic ferns having rhizomes with tubers and roots as well as scales |