Plants herbaceous, scapose, stems arising from an exposed root crown; inflorescence a pedunculate raceme; flowers papilionaceous, perfect and zygomorphic; corolla white to distally purple, tubular (connate) with 5 lobes; connate calyx with 5 tooth-like lobes; 10 diadelphous stamens (connate filaments in 2 groups), hypogynous.

Pinnately compound leaves (odd pinnate leaflets), estipulate, strigillose (short bristly hairs), leaflets are linear to oblong-oblanceolate with upward rolled margins.