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

genus Marattia, Marattia - type genus of the Marattiaceae: ferns having the sporangia fused together in two rows

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

genus Solanopteris, Solanopteris - tropical American epiphytic ferns having rhizomes with tubers and roots as well as scales