Lythrum hyssopifolia (Grass Poly) is a species of annual herb in the family Lythraceae. It has a self-supporting growth form. It is associated with freshwater habitat. Grass Poly is native to Pampa, Mata Atlântica, and Rio Grande do Sul. It has simple, broad leaves. It is a photoautotroph. Individuals can grow to 0.16 m.
EOL has data for 20 attributes, including: