July 20th, 2007 
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Description:
Perennial herb, 20-30 cm. high. Leaves long-cordate, glabrous, acute at the apex; petiole long, arising from the rhizome. Flowers tubular, brownish-grey, solitary in the axil of the leaves. Fruit enveloped in an accrescent perianth, bearing numerous seeds of dark-brown colour.
Perennial herb, 20-30 cm. high. Leaves long-cordate, glabrous, acute at the apex; petiole long, arising from the rhizome. Flowers tubular, brownish-grey, solitary in the axil of the leaves. Fruit enveloped in an accrescent perianth, bearing numerous seeds of dark-brown colour.
Flowering period:
April – June.
Distribution:
Wild species in moist places.
Parts used:
The whole plant, collected throughout the year, is sun-dried or heat-dried before use.
Chemical composition:
The flowers contain anthocyanoside.
Therapeutic uses:
The flowers and the roots are a reconstituent, in a dose of 6 to 12g per day, in a decoction or elixir. The leaves are administered in a dose of 10 to 16g per day against dyspepsia and colic.
Source: Medicinal plants in Viet Nam (Institute of Materia Medica – HANOI – WHO/WPRO, 1990, 444 p.)
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