1	Leaf palmately 2-4-foliolate, ovules numerous, hypanthium short, petals inserted towards the base of the hypanthium, fruit regularly jointed, not maturing below the soil		Zornia
+	Leaf pinnately 3-4-foliolate, ovules 3-2, hypanthinum long, petals and stamens inserted at the apex of the hypanthium, fruit not regularly jointed, maturing delow the soil		Arachis