| Noun | 1. | genus Houttuynia - one species; east Asian low-growing plant of wet places dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination family Saururaceae, lizard's-tail family, Saururaceae - family of perennial aromatic herbs: genera Saururus, Anemopsis, Houttuynia |