Sp. Pl., ed. 2 1: 62. 1762.
Herbs, perennial, mat-forming, repent (flowering-stems ascending). Leaves 2-ranked, gradually reduced toward ends of flowering-stems; blade ovate to lanceolate or lanceolate-oblong, 1–3.5 × 0.6–1 cm (distal leaf-blades much narrower than sheaths when sheaths opened, flattened), margins scabrid, apex acute, glabrous. Inflorescences sessile in axils of distal leaves of flowering-stems, composed of pairs of sessile cymes (sometimes reduced to single cymes). Flowers bisexual and pistillate, odorless, subsessile; petals inconspicuous, white, lanceolate, 3–6 mm; stamens 0–6, long-exserted; filaments glabrous; ovary 2-locular, stigma penicillate. Capsules 2-locular. Seeds 1 mm.
Phenology: Flowering early spring (Tex) or summer–fall (Fla.).
Habitat: Shady, rocky or gravelly places, and in citrus groves
Introduced; Fla., La., Tex., West Indies, South America (to Argentina)