Gymnostachyum calcicola Rafidah A habit B flower (side view) C flower (front view) D portion of inflorescence showing dichasial cymose branches E portion of infructescence.

 
 
  Part of: Rafidah AR, Ummul Nazrah AR, Ong PT (2024) Gymnostachyum calcicola (Acanthaceae), a new species from limestone karst of Peninsular Malaysia. PhytoKeys 242: 273-280. https://doi.org/10.3897/phytokeys.242.122869