Costus alleniopsis Maas & D. Skinner A inflorescence B bracts and flower C plant in habitat D ligule and leaf base E ligule and leaf base of C. allenii for comparison F leaf plicae and indument G leaf plicae and indument of Costus allenii for comparison. Photos of C. alleniopsis in habitat, Veraguas, Panama by Dave Skinner.

 
 
  Part of: Maas PJM, Maas-van de Kamer H, André T, Skinner D, Valderrama E, Specht CD (2023) Eighteen new species of Neotropical Costaceae (Zingiberales). PhytoKeys 222: 75-127. https://doi.org/10.3897/phytokeys.222.87779