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Ovary bicarpellate and biovulate; style 0; stigmas 2, long exserted, in hermaphrodite often shorter and thinner than in female, hairy, greyish-white, yellowish-grey or greenish.
Fruit dehiscent, not supported by a carpophore; mericarps ± glabrous, tuberculate or covered with long hairs, dorsal side convex, ventral side plane to concave.
Leaves decussate, broadly ovate to lanceolate, distinctly petiolate, with stipular sheaths bearing 3–5(7) setae on either side.
Female: corolla much smaller, tube cylindrical, sometimes 0, lobes erect to spreading, ± linear.
Perennial herbs with branched, often ± woody rhizomes or rootstocks.
Inflorescence terminal, paniculate to thyrso-paniculate, bracteate.
Flowers hermaphrodite, female or male, 4(5)-merous.
Calyx obsolete.
