1	"Epicalyx bracts lanceolate to ovate or subcircular, at least 1.5 mm wide in flowers"	2
1	"Epicalyx bracts filiform to narrowly linear, up to about 1 mm wide in flower"	6
2	"Mericarps without spines"	"Pavonia burchellii"
2	"Mericarps spiny"	3
3	"Mericarps with two flat sides and a convex back with a raised central spine having 2 rows of hooked prickles on either side"	"Pavonia elegans"
3	"Mericarps more or less obovoide, with a spiny dorsal keel and spiny lateral ridges"	4
4	"Calyces 7-9 mm long; all vegetatives parts finely tomentellous, without long hairs"	"Pavonia friisii"
4	"Calyces 3-5 mm long; vegetative parts either with long simple hairs or large stellate hairs"	5
5	"Branchlets and pedicels with long simple hairs, without or with a few scattered glands"	"Pavonia procumbens"
5	"Branchlets and pedicels without long simple hairs, usually densely glandular"	"Pavonia flavoferruginea"
6	"Mericarps with 2 lateral spines and 1 apical conical spind on the back; epicalyx bracts narrowly linear, about 1 mm wide in flower"	"Pavonia propinqua"
6	"Mericarps without spines; epicalyx bracts filiform"	7
7	"Leaves distinctly 3-5-lobed or divided"	8
7	"Leaves not or only slightly lobed"	10
8	"Petals 20-25 mm long; calyces 5.5-6 mm long; leaves digitately 3-foliolate, the leaflets with entire margins"	"Pavonia nigrescens"
8	"Petals 6-11 mm longl calyces 2-4 mm long; leaves 3-5-lobed or digitately 3-5-foliolate, the lobes or leaflets dentate at least towards the tips"	9
9	"Mericarps 3-4 mm long, with wings up to 0.5 mm wide and backs with a central ridge and some transverse ridges"	"Pavonia zeylanica"
9	"Mericarps 4.5-6 mm long, with wings 1.5-3 mm wide and transversely reticulate backs"	"Pavonia pirottae"
10	"Leaf margins entire or almost so"	11
10	"At least some leaves with distinctly toothed margins"	13
11	"Stems with a rough indumentum often of somewhat brownish hairs; calyces glabrous except for their ciliate margins"	"Pavonia ellenbeckii"
11	"Stems pubescent and/or glandulat but indumentum neither rough nor brownishl calyces puberulous to tomentose or glandular"	12
12	"Leaf blades cordate to rounded at the base; stems pubescent to tomentose with at least some stellate or long simple hairs"	"Pavonia arabica"
12	"Leaf blades cuneat at the base; stems with minute glandular hairs only"	"Pavonia sp. = Gillett, Hemming, & Watson 22140"
13	"Epicalyx bracts 5-6"	14
13	"Epicalyx bracts (7-)8-19"	15
14	"Petals 17-20 mm long; mericarps 10-14 mm long with 3-4 mm wide wings"	"Pavonia eremogeiton"
14	"Petals 10-13 mm long; mericarps 4.8-5.5 mm long with wings about 1.2 mm wide"	"Pavonia paucibracteata"
15	"Mericarps 3-4 mm long, not winged or wings no more than 0.5 mm wide"	16
15	"Mericarps 4.5-12 mm long with wings 1-5 mm wide"	18
16	"Petals 6-11 mm longl calyces 2-4 mm long; leaves 3-5-lobed or digitately 3-5-foliolate, the lobes or leaflets dentate at least towards the tips"	"Pavonia zeylanica"
16	"Petals 14-20 mm long"	17
17	"Leaf blades dark green above, pale greyish green beneath; toothed for most of their length; pedicels 5-15 mm long; mericarps keeled on the back"	"Pavonia mollissima"
17	"Leaf blades not much darker above than beneath, toothed only distally, sometimes obscurely so; pedicels often more than 15 mm long; mericarps reticulate on the back"	"Pavonia somalensis"
18	"Leaf blades with reddish margins, entire or with 1-3 teeth at the tip"	"Pavonia marginata"
18	"Leaf blades without reddish margins, margins more or less distinctly toothed below the tips"	19
19	"Calyces 2-3 mm long; leaf blades suorbicular, about as long as wide; epicalyx bracts 13-19"	"Pavonia rotundifolia"
19	"Calyces 4-8 mm long; leaf blades, at least most of them, clearly longer than wide; epicalyx bracts up to 13, usually fewer"	20
20	"Epicalyx bracts 5-8 mm long in flower; leaves often somewhat 3-lobed"	"Pavonia sp. = Beckett 1292"
20	"Epicalyx bracts 8-20 mm long; leaves not lobed"	21
21	"Mericarps usually with a triangular outline when seed from the side, with wings up to 2.5 mm side at the widest; leaf blades usually with 9 or more teeth on each side"	"Pavonia serrata"
21	"Mericarps suborbicular in outline, wings 2-5 mm wide; leaf blades usually with fewer than 9 teeth per side"	22
22	"Leaf blades with broadly cuneate or rounded bases; stems usually with non-glandular hairs only; seeds with short, scattered, curly hairs"	"Pavonia kotschyi"
22	"Leaf blades with cordate bases; stems with a mix of glancular and non-glandular stellate hairs; seeds densly villous with long, greyish-white hairs"	"Pavonia matteiana"