erect, glabrous or pilose herbs. Leaves pinnate, segments narrow linear.
Inflorescence of compound umbels, terminal and lateral. Bracts few or many,
simple, rarely divided, bracteoles many, undivided. Umbellules few-flowered.
Sepals present or obsolete. Petals white or yellowish, obovate, inflexed.
Fruits ellipsoid to ovoid, with prominent ridges, densely vesiculose-papilose,
dorsal vitate solitary, commissural vittae 2, stylopodium depressed conical.
Seeds terete, dorsally subcompressed, plane or obscurely channeled on the iner