Pteronia paniculata Thunb.

A scrubby bush; branches glabrous; internodes 1.5 mm long. Leaves opposite, connate and encircling the branchlet for about 5 mm at the base, linear, with recurved subobtuse apices, very slightly concave and distinctly 1-nerved on the upper surface, very convex on the lower surface, 1.5-2 cm long, 1.5-2 mm broad, fleshy, glabrous and usually more or less viscid. Heads crowded and several at the apex of each branchlet, very narrowly turbinate, obtuse in the bud stage, 1 cm long, 3 mm in diameter in the middle, 1-4-flowered. Involucral bracts 4-seriate; the outermost ovate-oblong, obtuse, 2.5 mm long, about 1.25 mm broad, rigidly paleaceous, with a very narrow minutely jagged hyaline margin; the innermost series oblanceolate, obtuse, 8 mm long, 2 mm broad, with rather narrow hyaline margins. Receptacle about 1.25 mm in diameter. Corolla ribbed, 5 mm long, glabrous; lobes lanceolate, subacute, 1.5 mm long. Anthers not exserted beyond the tips of the corolla-lobes. Achenes 2.5 mm long, contracted at the top, long-villous. Pappus white, a little shorter than the corolla.