Salix chekiangensis

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Salix chekiangensis
Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Willow family (Salicaceae)
Genre : Willows ( Salix )
Type : Salix chekiangensis
Scientific name
Salix chekiangensis
WCCheng

Salix chekiangensis is a tree from the genus of willow ( Salix ) with initially finely hairy and later balding branches. The leaf blades have lengths of 1.5 to sometimes 3.5 centimeters. The natural range of the species is in China.

description

Salix chekiangensis is a tree with a dull gray bark . The branches are brown and bare. Young twigs are brownish, finely haired or almost bare. The leaves have an elongated-lanceolate, 1.5 to 3.5 centimeter long leaf blade with an inconspicuous glandular sawn leaf edge. The upper side is green, downy-haired or bald along the central vein , the underside is greenish, initially tightly compressed gray-white hairy downy and later balding.

The male inflorescences are 3.5 to 6.5 centimeters long catkins with a 4 to 5 millimeter long, leafless stalk. The inflorescence axis is densely hairy. The bracts are egg-shaped, about 2 millimeters long, shaggy hairy on both sides, pointed with sparsely ciliate leaf underside. Male flowers have an almost rectangular, entire adaxial nectar gland and a large, three-lobed abaxial gland. The four stamens are of unequal length and finely haired at the base, the anthers are yellow and egg-shaped. Female kittens are unknown. Salix chekiangensis flowers in April.

Occurrence

The natural range is in the Chinese province of Zhejiang , where Salix chekiangensis grows near water.

Systematics

Salix chekiangensis is a kind from the kind of willow ( Salix ), in the family of the pasture plants (Salicaceae). There she is assigned to the Wilsonia section . It was first scientifically described by Wan Chun Cheng in 1933 . The generic name Salix comes from Latin and was already used by the Romans for various types of willow. The species is similar to Salix rosthornii but differs in the leafless inflorescence stalk, the shaggy bracts, which are about the same length as the stamens, the entire adaxial gland, the three-lobed abaxial gland and the four stamens.

proof

literature

  • Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 4: Cycadaceae through Fagaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3 , pp. 171, 176 (English).
  • Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 , p. 552 (reprint from 1996).

Individual evidence

  1. ↑ a b c d e f Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix chekiangensis , in the Flora of China , Volume 4, p. 176
  2. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix Sect. Wilsonia , in the Flora of China , Volume 4, p. 263
  3. ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 552

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