Parietaria zeylanica Linnaeus, Sp. Pl. 2: 1052. 1753

Plants 1-20 dm, sparsely to moderately covered on all parts with appressed and spreading hairs. Leaf blades 1-5 × 0.6-2 cm, base rounded to broadly cuneate, apex acute or nearly acuminate. Staminate flowers ca. 3 mm across; filaments longer than tepals; pistillode elongate, knoblike. Pistillate flowers ca. 1-1.5 mm, tepals ribbed. Achenes ca. (0.9-)1.2 × ca. 0.6 mm, base truncate.

Flowering late summer-winter. Roadsides, old fields, waste places, disturbed areas; 0-20 m; introduced; Fla.; Asia.

Pouzolzia zeylanica was misidentified as Parietaria officinalis Linnaeus by J. K. Small.