Asplenium dielfalcatum, a member of the fern family (Aspleniaceae) grows from a rhizome (underground stern), 1 to 5 cm (0.4 to 2 in) long and 0.5 to 2 cm (0.2 to 0.8 in) in diameter that is covered with small black or maroon scales. Stalks of the fronds are dark brown to pale tan, usually have a...