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Female flowers with calyx segments connate below into a ribbed, winged or smooth tube enveloping the receptacle; free lobes of the calyx (3)4, deciduous or persistent in fruit; styles 1 or 2, long and filiform or very short; stigma lacerate-multifid.
Leaves of species in F.Z. area trifoliolate (rarely unifoliolate by suppression of the lateral leaflets); leaflets oblanceolate to linear; stipules triangular, acute, adnate to the petiole and sheathing the stem.
Male flowers with (3)4 petaloid, free or ± connate calyx-lobes and (3)4 or (6)8 or up to 50 stamens.
Flowers unisexual (very rarely bisexual), axillary, usually solitary, petals 0.
Erect or procumbent, dioecious or monoecious shrubs or rarely trees.
Achenes 1 or 2, enveloped by the ± inflated, persistent calyx-tube.
