Seeds “horizontal” (i.e. vertically compressed); testa apparently thinly crustaceous.
Flowers axillary, solitary or sometimes up to 3 together, sessile, subtended by a minute bidentate cupule but without bracteoles, hermaphrodite.
Leaves more or less fleshy, entire, alternate, sessile, narrow but not scale-like.
Perennial herbs, sometimes thinly woody below more or less densely silky-hairy.
Perianth 5-lobed, the lobes each developing in fruit dorsally a low blunt pyramidal horn without any wings.