Perennial herb, (0.3-)0.5-1,2(-1 ,4) m high. Stems with short shoots; short shoot leaves often as long as long shoot leaves. Leaves ovate, elliptic or ovate-lanceolate, both surfaces (particularly main veins) densely covered with short spreading whitish to yellowish hairs, seldom papillate or subglabrous. Inflorescence narrowly cylindrical, peduncles and pedicels (0.8-) 1,0-5.0(-6.0) mm long. Fruits warty, glabrous. Flowers greenish, greenish yellow, purplish or brownish red tinged.
Perennial herb, 0.55-1.50 m high; stems unbranched, erect to ascending, short-shoot leaves conspicuous, almost length of long shoot leaves. Leaves ± ovate, up to 50 x 30 mm; stipular sheath with 3(4) or 5 setae. Inflorescences up to 380 mm long; fruiting pedicels up to 3 mm long. Flowers male, hermaphrodite or female; corolla greenish, purplish or brownish red, often papillate outside. Flowering time Dec.-Mar. Fruit warty-tuberculate mericarps, up to 2 x 1.5 mm.