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 female plants

1 Ovary pilose proximally, glabrous distally; capsule pilose only proximally 220 Salix characta

+ Ovary and capsule pilose throughout (sometimes subglabrous in S. rehderiana). (2)

2 (1) Branchlets densely gray tomentose 226 Salix turanica

+ Branchlets pilose or glabrous, not gray tomentose. (3)

3 (2) Bracts ovate, with dense, long, gray hairs 222 Salix sajanensis

+ Bracts oblong or oblong-ovate to lanceolate, pilose, without long, gray hairs. (4)

4 (3) Catkin ca. 1.2 cm thick 224 Salix dasyclados

+ Catkin less than 1 cm thick. (5)

5 (4) Catkin (2-)3-7 cm, 4-11 cm in fruit (except S. rehderiana var. dolia); ovary more than 3 mm 223 Salix rehderiana

+ Catkin 1.2-3(-3.5) cm, 2.5-4 cm in fruit; ovary less than 2 mm. (6)

6 (5) Ovary sessile; young leaves silvery silky abaxially 227 Salix schwerinii

+ Ovary shortly stipitate; young leaves not silvery silky abaxially. (7)

7 (6) Catkin 3-3.5 cm; bracts narrowly ovate; branchlets pubescent 225 Salix sachalinensis

+ Catkin ca. 2 cm; bracts lanceolate or liguliform; branchlets glabrous or sparsely pilose 221 Salix siuzevii

List of Keys

Lower Taxa