Prostrate, usually pubescent annual or short-lived perennial herbs, ?usually arising from perennating rootstock. Leaves alternate, 2–6-foliolate, the upper pair usually ±erect and larger than lower pair(s), not succulent; petiole terete; leaflets shortly petiolulate, not stipellate; stipules markedly unequal. Pedicel usually erect in flower, deflexed in fruit. Sepals 5, not persistent in fruit. Petals 5, quickly deciduous, usually longer than sepals, rarely of similar length, yellow, not fading to white. Stamens 10 or fewer, usually in 2 subequal whorls; filaments not winged. Extrastaminal nectariferous disc 5-lobed; intrastaminal disc of 5 free lobes or sinuate ring or lacking. Ovary 5-celled; ovules 1 per cell; style short; stigma 5-ridged, papillose. Fruit a pyramidal schizocarp topped by persistent style and stigma, pendent, dissociating into 1–5 indehiscent, smooth or tuberculate, spiny, or rarely winged, cocci.
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