Salix Sect. Vimen in Flora of China @ efloras.org

28. Salix Sect. Vimen Dumortier, Bijdr. Natuurk. Wetensch. 1(1): 56. 1825.

蒿柳组 hao liu zu

Sect. Viminales (Seringe) Koch.

Trees or shrubs. One-year-old branchlets slender, pilose. Leaf blade linear to lanceolate, oblanceolate, or oblong, margin entire, usually revolute, rarely sinuolate or serrulate; midvein often raised abaxially. Flowering precocious or coetaneous. Catkins oblong to shortly cylindric, shortly pedunculate or subsessile; bracts 2-colored, long white pubescent. Male flower: gland solitary, adaxial; stamens 2, distinct; anthers golden yellow. Female flower: ovary sericeous, sessile or stipitate; style long; stigma 2-lobed or entire.

Key based on vegetative characters

1 Leaf blade broadest above middle. (2)

+ Leaf blade broadest below middle. (3)

2 (1) Branchlets dull chestnut colored; plants of sandy or gravelly ground 222 Salix sajanensis

+ Branchlets brown; plants of shores of rivers and lakes 224 Salix dasyclados

3 (1) Leaf blade narrowly lanceolate or linear-lanceolate, abaxially silvery silky, shiny 227 Salix schwerinii

+ Leaf blade lanceolate or oblong, abaxially gray tomentose, dull silvery silky, white downy, or subglabrous. (4)

4 (3) Branchlets and leaves densely gray tomentose 226 Salix turanica

+ Branchlets and leaves glabrous or pilose, not gray tomentose. (5)

5 (4) Branchlets pubescent 225 Salix sachalinensis

+ Branchlets glabrous or with sparse hairs (young branchlets sometimes with short, soft hairs). (6)

6 (5) Leaf margin serrulate 220 Salix characta

+ Leaf margin entire, undulate, or irregularly remotely dentate. (7)

7 (6) Leaf margin undulate, subentire 221 Salix siuzevii

+ Leaf margin not undulate, margin crenate, irregularly remotely dentate, or entire 223 Salix rehderiana

List of Keys

Lower Taxa