PLANT FAMILY: Costaceae
BOTANICAL NAME: Costus anomocalyx
FORMAL SCIENTIFIC NAME:
This African species is placed in synonymy with Costus afer (PID3430) in Paul Maas' monograph on African Costaceae, published on 16 December 2016. (Monograph of African Costaceae, H. Maas-van de Kamer, P.J.M. Maas, J.J. Wieringa, C.D. Specht, Blumea 61, 2016: 280 - 318, http://www.ingentaconnect.com/content/nhn/blumea/2016/00000061/00000003/art00010)
The type is from Togo, described by Schumann in 1904. Some sources indicate a syn. For C. afer and some for C. dubius, but it is described as producing one flower per bracts so it is more likely to be C. dubius.
The African Plant Database lists this species as a syn. For C. afer.