An erect per>ennial plant mostly 20-80 cm tall. Leaves 4 per node, 13-31 mm long, linear to broadly lanceolate, 3-veined, minutely scabrous, apex obtuse. Inflorescence a congested terminal, nearly leafless, more or less pyramidal panicle of cymules. perfect, numerous; corollas cream or white, sometimes with faint purplish markings which fade in dried specimens, rotate or a little cupped at base, the 4 lobes ovate, the apices blunt; ovaries generally densely hairy with short upwardly-curved hairs. Fruit dry, with short bristles, the mericarps becoming reniform. |