Sprawling annual to 30 cm. Leaves finely dissected, glaucous. Flowers in leaf-opposed umbels, rays 4-14, white, stylopodium shortly conical, raised above fruit apex, styles becoming reflexed up to or beyond base of stylopodium. Mericarps dorsally compressed, tubercled, < 8 mm long, marginal ribs slightly involute, winged, vittae present.