English: Old-world adder's-tongue.
Synonym: Ophioglossum pendulum.
Clades:
Ophioglossaceae.
Malay: Daun rambu.
Region: East Indies, Malaysia.
Botanyfern: epiphyte.
Leaves: pendant; long, up to 450 cm long, 8 cm wide; produced at intervals along a tree-clinging rhizome.