Pteronia viscosa Thunb.

A shrublet 0.3-0.6 m [as '1-2 ft.'] high; branchlets covered with greyish-white glabrous bark. Leaves opposite, contiguous but only slightly connate at the base, lanceolate or oblong-lanceolate, slightly mucronate, 0.8-1 cm long, about 4 mm broad, keeled, shortly setulose-ciliate on the margin and often on the lower surface, especially the keel, thick and fleshy. Heads about 15-flowered, terminal, solitary, obconic, 2-2.5 cm long, about 1.5 cm in diameter. Involucral bracts about 5-seriate; the outermost broadly ovate, subacute, about 8 mm long, scaly; the innermost linear-lanceolate, acute, about 1.5 cm long, membranous, scaly, all rugulose in the upper part outside. Receptacle small and honeycombed. Corolla slender, 1.2 cm long, slightly angular at the base, glabrous; lobes ovate-lanceolate, subacute, 1.25 mm long. Anther tips produced very slightly beyond the tips of the corolla lobes. Achenes closely packed, compressed, obovate, 7 mm long, 4 mm broad, with strongly ribbed margins, quite glabrous over the surface, but sometimes with 2 or 3 long hairs on the ribs. Pappus straw-coloured, as long as the corolla.