Plagiostachys crocydocalyx is a monocotyledonous plant species first described by Karl Moritz Schumann, and given its current name by Brian Laurence Burtt and Rosemary Margaret Smith.

[1] Plagiostachys crocydocalyx is part of the genus Plagiostachys and the family Zingiberaceae.

[2][3] No subspecies are listed in the Catalog of Life.

[2]