CREPE GINGER: A Herb for Pain & Inflammation

 

Crepe ginger, botanically known as Hellenia speciosa (Synonyms: Costus speciosus, Cheilocostus speciosus, Amomum arboreum), is an important medicinal plant from the spiral ginger family (Costaceae). The plant is recognized by many regional names, reflecting its familiarity across different parts of India and other Asian regions. It has an established place in Ayurveda, Unani, and other traditional healing traditions in the Indian sub-continent. Traditional preparations make use of the rhizome and its extracts, particularly in remedies associated with diabetes, inflammation, microbial infections, respiratory complaints, skin disorders, and digestive or urinary problems. These applications are linked to a varied phytochemical profile of the crepe ginger. 

COMMON NAMES

v English: Crepe ginger, Cane-reed, Malay ginger, Spiral flag, Pacing flower, Spiral ginger, Wild ginger v Hindi: Keu, Kushth v Sanskrit: Kemuka, Kusth v Assamese: Jom Lakhut v Bengali: Keu, Keumuk v Gujarati: Pevato v Kannada: Nari Kabbu, Naayi Kabbu, Pushkaramula, Pushkara, Changalakosta, Changalakostha, Neeraja, Padmapatra v Konkani: Koshi v Malayalam: Anakkuva, Cannakkuva v Marathi: Pev v Oriya: Kushtha v Tamil: Kostam, Ven-kostam v Telugu: Kasmiramu, Kimuka, Koshtamu

  

DISTRIBUTION

Crepe ginger is indigenous to Southeast Asia and the Indian Subcontinent, including China, Nepal, Sri Lanka, Taiwan, Malaysia, and New Guinea, where it thrives in moist valley areas, forest margins, and roadsides. It has naturalized and cultivated in various tropical moist lowland and subtropical zones outside its native range in Africa and Americas.

 

MORPHOLOGY
Crepe ginger grows 1–3 m tall, with a spirally curved stem that may branch above when mature. Bladeless, green to reddish-purple sheaths enclose the lower stem; leaves occur above. Leaf blades are oblanceolate-acuminate, up to 23 × 6 cm, widest above the middle, and rounded at the base; the upper surface is glabrous to appressed-hairy and the lower nearly glabrous to densely sericeous. The inflorescence is about 10 × 5–6 cm on a short, usually curved peduncle. Each ovate, acute bract (12–15 mm) subtends one flower; it is green to red-flushed, glabrous to hairy below the apex, and bears a narrow red fleshy protuberance up to 5 mm. Bracteoles are about 10 mm, acute, and ciliate. The calyx is green, becoming red, longer than the bract, and has three unequal reddish teeth. The corolla tube is shorter than the calyx; its three white or pinkish lobes are 3–5 cm long. The white labellum is 5.5–7.5 cm across, with a yellowish median band and long yellow hairs. Stamens are about 2.5 cm long; the flattened filament is 10–12 mm broad, yellow-tipped, and pubescent. The flattened ovary is about 9 mm broad, and the fruit is a red capsule. 

 

PHYTOCHEMICAL CONSTITUENTS

Crepe ginger rhizomes contain alkaloids, glycosides, steroids, phenolic, flavonoids, polyphenols, tannins, and β‑carotene. The major bioactive compounds are diosgenin (steroidal saponin, precursor in the manufacture of steroid hormones and contraceptives), β‑sitosterol, furostanol saponins‑costusosides (antioxidant, anticancer, and antimicrobial), β‑D‑glucoside, prosapogenins, dioscin, gracillin, dihydrophytylplastoquinone, α‑tocopherolquinone, β‑amyrin, camphene, α‑humulene, lupeol, and zerumbone (antioxidant, anticancer). 

MEDICINAL USES

1.    Diabetes Management

Rhizome extract of crepe ginger is traditionally taken to help reduce blood glucose and address complications associated with diabetes. This use has led to comparisons between crepe ginger and the insulin plant. Such traditional practice is one of the main reasons the species is discussed as a potentially valuable medicinal herb.

2.    Useful in Pain and inflammation

Crepe ginger preparations are used to relieve joint pain, rheumatism, and inflammatory swelling by the traditional healers. This application complements the plant’s reported anti-inflammatory activity and shows how it has been used for both localized discomfort and broader inflammatory complaints.

3.    Cure for Respiratory Ailments

Crepe ginger pastes and decoctions prepared from the rhizome are used for asthma, bronchitis, and cough. Crushed rhizomes can be put in boiling water and inhales. These folk uses demonstrate the importance of crepe ginger in household and traditional remedies intended to ease common respiratory symptoms.

4.    Useful in Fever

Crepe ginger is traditionally used for curing fever.

5.    Antimicrobial Properties

Crepe ginger rhizome paste is applied topically to skin disorders, boils, scabies, and ulcers. Its extracts have demonstrated activity against bacteria including Staphylococcus aureus and E. coli. These reported effects support the longstanding external use of crepe ginger in preparations for affected skin.

6.    Digestive support

Crepe ginger has traditionally served as a mild purgative, and an anthelmintic for expelling intestinal worms. These uses broaden its ethnomedicinal profile beyond pain and inflammation.

7.     Useful in Urinary Problems

Crepe ginger has traditionally used as a remedy for urinary-tract complaints.