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2a2. Salix Linnaeus (subg. Protitea) sect. Humboldtianae Andersson in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 16(2): 199. 1868.
Shrubs or trees, 1-30 m. Branches somewhat brittle, highly brittle, or flexible at base. Leaves: petiole with pairs or clusters of spherical glands distally; largest medial blade relatively narrow (6-37 mm wide), margins flat, (glands marginal), abaxial surface glabrous, glabrescent, puberulent, pubescent, or pilose. Pistillate catkins slender, (5-16 mm wide). Pistillate flowers: ovary glabrous or villous.
Species 15 (6 in the flora): North America, Mexico, West Indies, Central America, Asia.
Lower Taxa
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