Specimens of Ouhuoxue Dan

Ouhuoxue Dan is a vine herbaceous plant belonging to the family Lamiaceae. The stem is four diamond shaped, with a light purple red base; Leaves herbaceous, nearly circular; Leaves renal shaped or renal round, base heart-shaped; Cymose inflorescence, consisting of a wheel umbrella shape, calyx tubular, corolla purple, disk cup-shaped, and slender style; Mature small nuts not seen. The flowering period is in May. Ouhuoxue Dan is native to various countries in Northern and Western Europe, and is also distributed in Xinjiang, China. Ouhuoxue Dan is tolerant to shade and prefers moisture. It grows best under semi shaded conditions in the forest, but slightly worse under full sunlight. It prefers fertile, loose, and well drained soil. The propagation method of Ouhuoxue Dan is cutting or branching propagation.