Families (As per The Plant List)
I
Icacinaceae -
7
(Apodytes dimidiata, Apodytes dimidiata var. acutifolia, Gomphandra coriacea, Gomphandra tetrandra, Miquelia dentata, Nothapodytes nimmoniana, Sarcostigma kleinii)
Iridaceae -
1
(Belamcanda chinensis)
Isoëtaceae -
5
(Isoetes coromandeliana, Isoetes dixitei, Isoetes sahyadriensis, Isoetes sampathkumarinii, Isoetes udupiensis)