I. cordifolia
– Pods usually 1-seeded; seeds homomorphic or heteromorphic ———————- 3
3.+ Inflorescence 14–17 flowered; trichomes on both surfaces of leaves 5-ramous (antler shaped); Pods strictly with one seed per pod, homomorphic ——– I. jaisalmerica
– Inflorescence 1–6 flowered; trichomes on both surfaces of leaves 1 –5-ramous; pods usually with one seed per, rarely with two seeds per pod then seeds are heteromorphic —————————————————————-