Classification
Kingdom: Plantae (2715)
Phylum: Tracheophyta (2630)
Class: Liliopsida (397)
Order: Zingiberales (26)
Family: Costaceae (3)(family description)
Genus: Costus (2)
Epithet: dubius (Afzel.) K.Schum. (2)
Synonyms: Costus albus A.Chev. ex Koechlin, Costus edulis De Wild. & T.Durand, Costus trachyphyllus K.Schum., Costus zechii K.Schum., Zingiber dubium Afzel.
albus => dead white, without lustre
dubium => doubtful, uncertain (usually in regard to taxonomic placement)
dubius => doubtful, uncertain (usually in regard to taxonomic placement)
edulis => edible
trachyphyllus => rough-leaved