Bark
No true bark; forms erect pseudostems from overlapping leaf sheaths. Rhizomes are thick, aromatic, and branched.
Syn. Costus zerumbet
No true bark; forms erect pseudostems from overlapping leaf sheaths. Rhizomes are thick, aromatic, and branched.
The leaves are about 2 ft long and 6 in across and strikingly variegated with irregular stripes of green and yellow in some varieties.
The flowers are white, tipped in pink, and borne in long pendant arches. In some varieties, there is no pink in the tip.
Globose to ovoid capsule, about 2–3 cm in diameter. Green when immature, becoming orange-red at maturity. Contains numerous black seeds enclosed in a whitish aril.
The individual flowers are reminiscent of small seashells, which accounts for the common name “shell ginger”.
South Japan to Taiwan, South China to North Peninsula Malaysia