1	"Achenes without a cartilaginous annular tube; outer pappuses usually cup-formed ot scale-like and separate; inner pappuses of long, capillary bristles"	2
1	"Achenes with a cartilaginous annular tube at the top; pappus bristles arising from the top of the tubes"	24
2	"Ray florets absent"	3
2	"Ray florests present"	9
3	"Leaves 4-12 mm wide"	4
3	"Leaves 1-4 mm wide"	5
4	"Branches and leaves tomentose; involucres 3.5-5 mm long"	"Pulicaria argyrophila"
4	"Branches and leaves pilose with stalked glands; involucres 6-10 mm long"	"Pulicaria aylmeri"
5	"Branches puberulous; leaves with 1-2 teeth n each side near their tips"	6
5	"Branches glabrous; leaves without teeth"	7
6	"Leaves 2-45 mm long; heads in corymbs"	"Pulicaria somalensis"
6	"Leaves 7-12 mm long; heads solitary"	"Pulicaria steinbergii"
7	"Leaves appressed-pilose; heads in corymbs"	"Pulicaria gabrielii"
7	"Leaves glabrous; heads solitary"	8
8	"Heads on stalks 1-3 cm long; outer pappuses 0.5-0.7 mm long; inner pappus bristles many"	"Pulicaria glutinosa"
8	"Heads on stalks 4-9 cm long; outer pappuses 0.1-0.2 mm long; inner pappus bristles few"	"Pulicaria monocephala"
9	"Papuses of 1 row of bristles"	"Pulicaria uniseriata"
9	"Pappuses of an outer row of scales and an inner row of bristles"	10
10	"Inner pappus bristles not flattened"	11
10	"Inner pappus bristles flattened"	16
11	"Leaf margins entire; heads in corymbs"	"Pulicaria inuloides"
11	"Leaf margins dentate or crenate"	12
12	"Outer florets with rays 1-2.5 mm long"	"Pulicaria undulata"
12	"Outer flores with rays 4-12 mm long"	13
13	"Leaves white-lanate"	"Pulicaria schimperi"
13	"Leaves sericeous or pubescent but not lanate"	14
14	"Leaves silvery sericeous; heads on stalks 1-4 cm long"	"Pulicaria sericea"
14	"Leaves pubescent or glandular hairy; heads on stalks 5-13 cm long"	15
15	"Leaves petiolate"	"Pulicaria petiolaris"
15	"Leaves sessile"	"Pulicaria renschiana"
16	"Leaves densely pubescent to lanate"	17
16	"Leaves sparsely hairy, hispid, glandular, or glabrous"	20
17	"Plants annual or biennial herbs; leaves 17-20 mm long"	"Pulicaria attenuata"
17	"Plants perennial herbsor shrubs; leaves 6-28 mm long"	18
18	"Leaves lanceolate"	"Pulicaria migiurtinorum"
18	"Leaves obovate to spathulate"	19
19	"Leaves 8-11 mm wide, dentate"	"Pulicaria argyrophila"
19	"Leaves 2-6 mm wide with 1-3 teeth"	"Pulicaria albida"
20	"Leaves dentate"	21
20	"Leaves entire or with 1-2 teeth near the tip"	22
21	"Outer florets with rays about 2 mm long"	"Pulicaria dumulosa"
21	"Outer florets with rays 0.6-1.2 mm long"	"Pulicaria confusa"
22	"Heads in corymbs"	"Pulicaris somalensis"
22	"Heads solitary"	23
23	"Leaves linear; outer pappuses 0.1-0.2 mm long"	"Pulicaris kurtziana"
23	"Leaves obovate to spathulate; outer pappuss 0.5-0.6 mm long"	"Pulicaria aualites"
24	"Heads homogamous; achenes with 2 constriction zones"	"Pulicaria docoidea"
24	"Heads heterogamous; achenes with 1-2, sometimes inconspicuous, constriction zones"	25
25	"Achenes with 2 constriction zones; leaves usually rough-dentate"	"Pulicaria hildebrandtii"
25	"Achenes with one, sometimes obscure, constriction zone; leaves entire or denticulate"	26
26	"Middles leaves 2-3.8 cm long, slightly obovate; outer pappuses 0.1-0.2 mm long"	"Pulicaria collenettei"
26	"Middle leaves 3-4.5 cm long, spathulate or lanceolate; outer pappuses not present"	"Pulicaria uniseriata"