Houttuynia cordata is a perennial herb, 15-50cm high, and smelly. The lower part of the stem is volcanic, rooted and upright. Leaves alternate, heart-shaped or broadly ovate, 3-8 cm long, 4-6 cm wide, apex acuminate, entire, pubescent, veins pubescent, purplish red below; petiole length 3-5 Cm; stipules are striped, and the lower part is combined with the petiole to form a sheath. Spikes are born at the top of the stem, opposite to the leaves, with white petal-like sepals at the base; flowers are small, sessile, sessile, sessile; stamens 3, full filaments underneath; carpel 3 conjoined underneath. Capsule ovoid, apex split. Flowering period from May to August, fruiting period from July to October. Born in mountains, ditches, ponds, Sichuan or Linxia wetlands.