Much-branched, erect, aromatic subshrub. Stems rather woody and smooth, older stems covered with remains of leaf bases. Leaves pinnate with pinnae irregularly divided into narrow segments, pilose and with pyriform-headed glandular hairs interspersed; lamina cordiform to narrowly cordiform in outline; petiole longer than lamina, persistent for some time. Pseudo-umbels 2-3-flowered. Pedicel shorter than hypanthium. Petals 4, pinkish-purple with darker veins, unguiculate; posterior two auriculate, claws inrolled to form false tubes, slightly longer than anterior petals. Fertile stamens 7.