Pteronia ciliata Thunb.

A scrubby bush up to 4 ft, high, branchlets short, terete, slightly puberulous. Leaves alternate, linear, obtuse, 2-7 mm long, concave and with a prominent midrib above, keeled below, thick and fleshy, glabrous. Heads terminal, solitary, more or less narrowly oblong-ellipsoid, contracted at the top, 1.5-2 cm long, 6-7 mm in diameter. Involucral bracts closely pressed together, 7-10-seriate, densely ciliate; the outer ovate and gradually passing into the leaves; the innermost linear, about 1.2 cm long; all obtuse and rigidly scaly, with a faint but distinct midrib on the back, yellow or yellowish green. Receptacle deeply concave, 5 mm in diameter, fimbriate-honeycombed. Corolla about 1 cm long, glabrous; lobes linear-lanceolate, acute, 3 mm long, green? Achenes 3 mm long, densely silky-villous. Pappus 5 mm long, brownish-yellow.