lythrum hyssopifolia

Lythrum hyssopifolia (orth. var. L. hyssopifolium) is a species of flowering plant in the loosestrife family known by the common names hyssop loosestrife and grass-poly. It is native to Europe but it is known elsewhere, including parts of Australia and eastern and western North America, as an introduced species and sometimes a weed. It often grows in moist habitat, such as marshes and wet agricultural fields, rice paddies, for example. This is a mostly upright, branching annual or biennial herb growing ...