|
|
|
32. Salix Sect. Caesiae A. Kerner, Verh. Zool.-Bot. Ges. Wien. 10: 205. 1860.
杞柳组 qi liu zu
Shrubs. Branches glabrous. Leaf blade oblong, elliptic, obovate, or obovate-lanceolate, glabrous, margin entire, very rarely serrate distally. Flowering coetaneous. Catkins subsessile. Male flower: gland solitary, adaxial; stamens 2; filaments partly connate or connate throughout. Female flower: ovary shortly stipitate or sessile; style short; stigma oblong.
|
|
|
|
| 1 |
Leaves and catkins usually opposite, rarely alternate or subwhorled |
|
242 Salix integra |
| + |
Leaves and catkins alternate. |
|
(2) |
| |
|
|
|
| 2 (1) |
Juvenile branchlets downy; mature leaf blade 0.5-3 × 0.3-1 cm; male catkin ovoid, 0.5-1 cm; flowering serotinous; shrubs less than 1 m tall |
|
239 Salix caesia |
| + |
Juvenile branchlets glabrous; mature leaf blade 30-70 × 10-30 cm; male catkin cylindric, 2-3 cm; flowering precocious or coetaneous; shrubs more than 1 m tall. |
|
(3) |
| |
|
|
|
| 3 (2) |
Leaves greenish on both surfaces; male catkin bracts downy on both surfaces; ovary ovoid |
|
241 Salix tarbagataica |
| + |
Leaves adaxially green, abaxially pale; male catkin bracts pilose only at base; ovary conical |
|
240 Salix kochiana |
|
|
|
Lower Taxa
| Related Links (opens in a new window) |
|
Treatments in Other Floras @ www.efloras.org
Other Databases
|
|
|
|
|
|
|
|
|
