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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
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1 |
Ovary pilose proximally, glabrous distally; capsule pilose only proximally |
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220 Salix characta |
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Ovary and capsule pilose throughout (sometimes subglabrous in S. rehderiana). |
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(2) |
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2 (1) |
Branchlets densely gray tomentose |
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226 Salix turanica |
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Branchlets pilose or glabrous, not gray tomentose. |
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(3) |
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3 (2) |
Bracts ovate, with dense, long, gray hairs |
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222 Salix sajanensis |
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Bracts oblong or oblong-ovate to lanceolate, pilose, without long, gray hairs. |
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(4) |
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4 (3) |
Catkin ca. 1.2 cm thick |
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224 Salix dasyclados |
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Catkin less than 1 cm thick. |
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(5) |
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5 (4) |
Catkin (2-)3-7 cm, 4-11 cm in fruit (except S. rehderiana var. dolia); ovary more than 3 mm |
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223 Salix rehderiana |
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Catkin 1.2-3(-3.5) cm, 2.5-4 cm in fruit; ovary less than 2 mm. |
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(6) |
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6 (5) |
Ovary sessile; young leaves silvery silky abaxially |
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227 Salix schwerinii |
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Ovary shortly stipitate; young leaves not silvery silky abaxially. |
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(7) |
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7 (6) |
Catkin 3-3.5 cm; bracts narrowly ovate; branchlets pubescent |
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225 Salix sachalinensis |
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Catkin ca. 2 cm; bracts lanceolate or liguliform; branchlets glabrous or sparsely pilose |
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221 Salix siuzevii |
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List of Keys
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Lower Taxa
Related Links (opens in a new window) |
Treatments in Other Floras @ www.efloras.org
Other Databases
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