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lespedeza capitata extract chinese name: hu zhi zi latin name:lespedeza bicolor turcz introduction:lespedeza capitata is a perennial species of bush clover that typically grows to 2-4' (less frequently to 5') tall on stiff upright stems. it is native to missouri where it is commonly found in upland woods, thickets and prairies, on glades and along streams, railroads and roadsides (steyermark). tiny creamy white, pea-like flowers with a magenta spot at the base of the standard bloom in dense, rounded heads (axillary clusters) in mid to late summer. trifoliate, alternate, almost stalkless leaves have three narrow-oblong leaflets. leaflets may be green with little hair to gray-green and hairy depending upon the particular variety or form. used part: stem & leaf physical state and appearance: fine brown powder active ingredient:quercetin cas no.:84837-05-8 molecular formula: c15h10o7 molecular weight: 302.23 function: fairly good expectorant and antitussive; some antiasthmatic effect lowering of blood pressure, reducing the brittalness of capillary vessel, lowering blood lipid, dilation of coronary artery, increasing the flow in coronary artery. for the treatment of chronical bronchitis, accessory treatment of coronary heart diseases and hypertension storage: store in cool & dry place, keep away from strong light and heat. shelf life: 24 months when properly stored.