homotypic synonyms:
Achasma linguiforme species (Roxb.) Loes.; Alpinia linguiformis Roxb.; Elettaria linguiformis (Roxb.) Schultes; Etlingera linguiformis (Roxb.) R.M.Sm.; Hornstedtia linguiformis (Roxb.) Schumann;

protologue: Fl. Brit. India 6: 255 (1892)
URL protologue: https://archive.org/stream/floraofbritishin06hookrich#page/255/mode/2up

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