<unk>  is a biennial herbaceous plant. It is morphologically characterized by the presence of a rhizome, simple, wide-brim leaves protected by showy bracts, and terminal inflorescences. It has a soft, leafy stem about 1.5–3 m high. Leaves are sessile or subsessile, elongated and pointed at the end. Its leaves are single cotyledons, shaped to look like a pike, about 7–9 cm wide, and about 20–40 cm long. The fruit is a berry having many seeds, and the pericarp is thin and green when it is young, becoming black and brittle when it gets old.
Alpinia nigra
Linea nigra
Habenular nuclei
Chondrocranium
Commotio cordis
Tapetum lucidum
Livedo racemosa
Glia limitans