Threlkeldia inchoata (J.M.Black) J.M.Black

Rounded much-branched perennial to 30 cm high, minutely pubescent in leaf axils, otherwise glabrous. Leaves terete, slender c. 15 mm long, acute. Perianth glabrous, the tube fleshy, c. 1 mm high; lobes united, membranous, c. 0.5 mm high, undulate, ciliate. Stamens 5. Fruiting perianth obovoid, 3–4 mm long, laterally compressed, hard, c. 5-ribbed, the radicular rib prominent; apex oblique and gibbous over radicle, shallowly rimmed around the central erect membranous perianth lobes, base concave. Seed and radicle erect.

Usually grows in slightly saline areas near water.