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Perianth infundibuliform, 4 (5)lobed; lobes spreading (less so in female flowers), more or less 1/3–1/2 length of perianth.
Fruit enclosed in hardened, elongated, longitudinally 4-winged perianth-tube (anthocarp).
Ovary stipitate, 1-ovulate; style asymmetrically inserted at apex of ovary, stout.
Leaves usually in fascicles, sessile to subsessile more or less fleshy, entire.
Flowers solitary or in fascicles, polygamous, usually on leafless branches.
Gynoecium reduced in functionally male flowers.
Spiny shrubs, densely branched, spreading.
