Curcuma (Latin name: Curcuma Longa L.) also known as: Turmeric, Baoding incense, life, turmeric, etc.
Plant height 1-1.5 meters, the rhizome is very developed, into clusters, branches are many, elliptic or cylindrical, orange yellow, very fragrant; Roots stout, terminal puffed tuberous. Leaves 5-7 per plant, oblong or elliptic, 30-45 (90) cm long and 15-18 cm wide, tapered at base, green, glabrous on both sides; Petiole 20-45 cm long. Scape drawn from the leaf sheath, pedicel 12 -- 20 cm long;Spices terete, 12 -- 18 cm long, 4 -- 9 cm in diameter; Bracts ovate or oblong, 3-5 cm long, pale green, less narrowly apically flowerless, spreading, white, margin tinged with pinkish red; Calyx 8 -- 12 mm long, white, unequally obtuse 3-toothed, puberulent; Corolla yellowish, tubes to 3 cm long, distally enlarged, lobes triangular, 1 -- 1.5 cm long, posterior one slightly larger, slender; Lateral stamens shorter than labellum, connected with filaments and base of labellum into a tube; Lower sepal obovate, 1.2-2 cm long, pale yellow, middle dark yellow, base with a 2-angular spur; Ovary puberulent. Flowering: August. Made in Taiwan, Fujian, Guangdong, Guangxi, Yunnan, Xizang and other provinces; Widely cultivated in East and Southeast Asia.