The leaves are bipinnately compound, with one or two pinnae pairs, and 10-26 leaflets per pinna. The round-shaped flower heads, which are inflorescences, are 8–10 mm in diameter (excluding the stamens). The floret petals are red in their upper part and the filaments are pink to lavender. The fruit consists of clusters of 2-8 pods from 1–2 cm long each. The pods break into 2-5 segments and contain pale brown seeds some 2.5 mm long. The flowers are pollinated by the wind and insects. The seeds have hard seed coats which restrict germination.