Erect, 70-120 (-180) cm tall, branched perennial herb, branches few, flexuous, glabrescent to pubescent or glabrous with few hairs below the node. Leaves shortly petiolate, petiole 1.5-8 mm long, pubescent or glabrous, lamina 5-13 x 1-3.5 cm, lanceolate or lanceolate-ovate, acuminate to mucronate at the apex, attenuate to cuneate at the base, densely pubescent to woolly tomentose below, glabrous or sparsely pubescent above; ochrea truncate, membranous, 1.2-2.6 cm long. Inflorescence a simple or well branched terminal panicle, 6-16 cm long. Ochreolae truncate, membranous. Bracts ovate, obtuse 0.75-1 x 0.5-0.6 mm. Flowers pedicellate, pedicel glabrous, 0.6-1.7 mm long, articulate. Tepals 5, subequal, creamy white or sometimes light yellow, 1.5-3 (-3.5) x 0.8-1.5 mm, slightly accrescent in the fruit. Stamens 8, ovary trigonous, styles 3, very short; stigmas capitate. Nuts trigonous, exserted beyond the tepals, 3-4 (-4.5) x 1.6-2.8 mm, ± dark brown, glossy. |