1	"Ligule white or orange"	2
1	"Ligule yellow"	3
2	"Ligule white; stolons 0; native of forests"	"Hieracium albiflorum"
2	"Ligule orange; stolons present; weed of disturbed sites"	"Hieracium aurantiacum"
3	"Leaf glabrous on 1 or both faces"	4
3	"Leaf +- hairy on faces (glabrous in <i>Hieracium scouleri</i>)"	5
4	"Leaf glabrous abaxially, sparsely to +- densely long-hairy adaxially; phyllaries glabrous or sparsely glandular; flowers 6--12"	"Hieracium bolanderi"
4	"Leaf glabrous; phyllaries long-hairy, branched-hairy, and black-glandular; flowers 20--60"	"Hieracium triste"
5	"Phyllaries generally without long, glandless hairs (occasionally long-hairy in <i>Hieracium argutum</i>), often minutely branched-hairy and/or glandular"	6
5	"Phyllaries with long, glandless hairs, occasionally also branched-hairy and/or glandular"	9
6	"Flowers 30--60"	"Hieracium parryi"
6	"Flowers 4--30"	7
7	"Flowers 15--30; involucre 7--9(12) mm; generally at least some leaves wavy-toothed (all entire); pappus +- white; c&s California"	"Hieracium argutum"
7	"Flowers generally 4--12(15); involucre (7)8--12 mm; leaves generally entire (minutely dentate); pappus tan to +- brown; KR, NCoR, CaRH"	8
8	"Peduncle glabrous or stalked-glandular; fruit +- urn-shaped"	"Hieracium bolanderi"
8	"Peduncle branched-hairy; fruit +- cylindric, not distally narrowed"	"Hieracium greenei"
9	"Leaf faces minutely rough-hairy and/or stalked glandular"	"Hieracium triste"
9	"Leaf faces long-hairy, also sometimes branched-hairy (rarely glabrous in <i>Hieracium scouleri</i>)"	10
10	"Flowers 6--12(15); involucre +- cylindric to +- bell-shaped"	"Hieracium horridum"
10	"Flowers 15--50; involucre obconic to bell-shaped"	11
11	"Some or all leaves wavy-toothed; c&s California"	"Hieracium argutum"
11	"Leaves all entire or some minutely dentate; n CA"	12
12	"Cauline leaves 0--3(5); pappus 4--6 mm"	"Hieracium nudicaule"
12	"Cauline leaves generally (3)5--10+; pappus 6--7 mm"	"Hieracium scouleri"