Schematic diagrams of the features used to recognize Chamaecostus cuspidatus.
Visual AtlasSupplement
Schematic diagrams of the diagnostic features described in the Identification Guide. These are teaching illustrations, not photographs; for research-grade authentication rely on botanist confirmation and herbarium vouchers.
Spiral leaf arrangement. Leaves step around the stem in a continuous spiral - the "spiral flag" habit of the Costaceae. Shown flattened as alternating ranks.Two-toned foliage. Glossy dark green above; often purple to reddish below. A quick field cue, though intensity varies with light and cultivar.Fiery inflorescence. Bright orange flowers emerge from a terminal cone of green bracts - the source of the name Fiery Costus and a key ornamental feature.Rhizomatous rootstock. Nutrient-storing underground stems power perennial regrowth and make division the most reliable propagation method.Habit and size. Dense clumps commonly 0.5-1 m tall. Low profile and arching leaf blades suit borders and containers.Bilateral symmetry. Showy labellum-like petals create a single mirror plane - typical Costaceae flower architecture, attractive to pollinators.
Identification caution. Diagrams simplify. Leaf underside coloration, size and flower intensity vary with growing conditions, and several related species share these broad traits. Do not rely on visual cues alone for medicinal material - see Costus igneus vs. Costus pictus.