Pteronia uncinata Dc.

A shrub. Branches glabrous, sulcate, with brown bark. Leaves opposite or 3 in a whorl, acicular, acute, about 1 cm long, furrowed above, convex beneath, with hooked recurved apices, free from each other at the base, glabrous, often viscid. Heads stalked, densely corymbosed, 4-5-flowered, obconic, a little over 1 cm long. Involucral bracts 4-5-seriate; the outer ovate-lanceolate or oblong-lanceolate, obtuse; the innermost linear-lanceolate, subacute, glabrous, often greenish when dry, scaly-membranous. Receptacle small, very deeply honeycombed. Corolla cylindric below, expanded above, 8 mm long; lobes lanceolate, subobtuse, glabrous. Anthers 2.75 mm long. Achenes oblong-obconic, 2.5 mm long, finely villous. Pappus white, 8-9 mm long, equalling the corolla.-