Salix, K.S. Hao ex C.F. Fang & A.K. Skvortsov

Key to the species of Sect. Floccosae

1. Ovary densely pilose or pilose only at base ........................................................................................................................... 2

_ Ovary glabrous ....................................................................................................................................................................... 6

2. Bracts margin slightly irregularly dentate or densely dentate, apex subtruncate ................................................. S. annulifera

_ Bracts margin entire, apex obtuse-rounded, obtuse, subtruncate........................................................................................... 3

3. Leaf blade obovate, obovate-elliptic, obovate-oblong, oblong-elliptic, 2–5 × 0.7–2 cm ...................................................... 4

_ Leaf blade obovate to orbicular-elliptic, or obovate-orbicular, 1.5–4.5 × 1.2–3.5 cm .......................................................... 5

4. Leaves abaxially and adaxially densely appressed villous…………….....….………... S. zayulica

_ Leaves abaxially grayish white villous when young, becoming flcoccose or glabrous, adaxially glabrous ......... S. floccosa

5. Ovary densely pilose; bracts pilose ...................................................................................................................... S. coggygria

_ Ovary pilose only at base; bracts glabrous or sparsely ciliate ............................................................................ S. resectoides

6. Leaf margin entire .................................................................................................................................................................. 7

_ Leaf margin crenate, crenate-serrate, glandular serrate, incurved glandular crenate, remotely crenate or serrate ................ 8

7. Ovary stipe 1.2 mm, bracts obovate, apex rounded-truncate, retuse ............................................................. S. jingdongensis

_ Ovary sessile, bracts rounded ........................................................................................................................... S. vaccinioides

8. Catkin glabrous; ovary sessile or subsessile .......................................................................................................................... 9

_ Catkin rachis pilose or pubescent; ovary stipe (0–) 0.1–1.3 mm .......................................................................................... 10

9. Leaf blade elliptic or obovate-elliptic, margin crenate; ovary sessile............................................................ S. faxonianoides

_ Leaf blade broadly oblong, margin serrate distally; ovary stipe short. ............................................................ S. kungmuensis

10. Leaves abaxially greenish; bracts obovate, apex truncate ................................................................................. S. microphyta

_ Leaves abaxially grayish white, pruinose; bracts oblong, narrowly obovate or obovate, apex rounded or slightly acute...11

11. Dwarf shrubs, stems decumbent, rooting; petioles 15–51 mm; styles distinct 1/2 their lengths, stigmas 2-lobed, 0.1 –0.24 mm; ovary stipe 0.8–1.3 mm .................................................................................................................................. S. elongata

_ Low shrubs, stems erect; petioles 4–10 mm; styles distinct 3/4 their lengths, stigmas 2-lobed, 0.2–0.5 mm; ovary stipe (0–) 0.1–0.3 mm .................................................................................................................................................. S. opsimantha