Shrubs, subshrubs with stellate-dendroid hairs; monoecious. Flowers pedicellate (male) or sessile (female) in clusters in short, compact, spike-like inflorescences; staminate flowers 4-lobed; staminate 4-, pistillate ones 2-bracteolate; bracteoles folded, united to above the middle; ovary covered with a thick silky tomentum; stigmas 2.Pericarp free; seeds vertical; embryo horseshoe-shaped; radicle pointing downward. Eight spp., Europe, Asia, N America.
Nov Comment Acad Sci Imp Petrop 16: 551 (1772)
Reveal and Holmgren, Taxon 21: 209 (1972).
Gutermann, Phyton 17: 35-36 (1975).