1, Curcuma longa, a perennial herb of Curcuma of Zingiberaceae, with a plant height of 1 ~ 1.5m, developed rhizomes, stout roots and swollen terminal roots; The leaves are round or oval, and the top of the leaves is short and tapering; Bracts ovate or oblong, light green, blunt, corolla light yellow; It blooms in August.

2, turmeric can promote qi to break blood stasis and relieve pain. Indications: Abdominal pain, shoulder and arm pain, unbearable heartache, postpartum hemodynia, tinea capitis, irregular menstruation, amenorrhea and traumatic injury. Yellow edible dyes can also be extracted; Curcumin can be used as an analytical chemical reagent.