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DescriptionDioecious trees or shrubs. Leaves alternate, persistently tomentellous beneath. Capitula (in ours) arranged in panicles, racemes or clusters. Capitula unisexual, disciform; receptacular scales 0. Phyllaries imbricate. Male capitula smaller than the female, ovary abortive or rudimentary; pappus sparse, barbellate, 1-seriate. Female capitula: anthers 0; achenes subcylindric-fusiform, c.8-ribbed, ± pubescent; pappus of barbellate setae in several series.