1	"Leaf-blades pubescent, hirsute or tomentose at least on the lower (abaxial) surface; calyx distinctly pubescent outside"	2
1	"Leaf-blades glabrous, sometimes sparsely puberulous on abaxial veins; calyx glabrous, sometimes sparsely puberulous outside"	4
2	"Leaf-blade broadly ovate, with almost rounded base, densely velvety-tomentose all over, corolla-tube always villous-tomentose outside"	"Clerodendrum tomentosum var. mollissima"
2	"Leaf-blades elliptic, elliptic-oblong or lanceolate, with a cuneate-attenuate base, tomentose or pubescent-glabrescent above; corolla-tube villous-tomentose or almost glabrous outside"	3
3	"Leaf-blades elliptic, elliptic-oblong or broadly lanceolate, pubescent-glabrescent above; corolla tube sparsely villous-pubescent or almost glabrous outside; calyx glandular and puberulous inside"	"Clerodendrum tomentosum var. tomentosum"
3	"Leaf-blades narrow-lanceolate, pubescent-tomentose all over; corolla-tube usually densely vinous-tomentose outside; calyx glandular and pubescent-tomentose inside"	"Clerodendrum tomentosum var. lanceolatum"
4	"Calyx 5-toothed or deeply 5-lobed"	"Clerodendrum floribundum"
4	"Calyx truncate or shallowly toothed"	"Clerodendrum inerme"