bird's nest fern: tropical Old World or Australian epiphytic fern frequently forming tufts in tree crotches
fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
moor: one of the Muslim people of north Africa; of mixed Arab and Berber descent; converted to Islam in the 8th century; conqueror of Spain in the 8th century