[[File:IMG 2256-Chamaecostus cuspidatus.jpg|thumb|right|''Chamaecostus cuspidatus'', ''insulin plant'']]
Chamaecostus cuspidatus, common name Fiery Costus or Spiral Flag, is a species of herbaceous plant in the Costaceae family native to eastern Brazil (States of Bahia and Espirito Santo). In India, it is known as insulin plant because of its use in [[Ayurvedic medicine ]] for its purported anti-diabetic properties.
== Description ==