Salix faxonianoides

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Salix faxonianoides
Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Willow family (Salicaceae)
Genre : Willows ( Salix )
Type : Salix faxonianoides
Scientific name
Salix faxonianoides
C. Wang & PY Fu

Salix faxonianoides is a species in the genus of willow ( Salix ) and grows as a lower bush . The leaf blades have a short stem and are notched. The natural range of the species is in China.

description

Salix faxonianoides grows as a low shrub that reaches a height of 40 centimeters. The branches are rusty brown or dark brown. The leaves have a short stem. The leaf blade is elliptical or obovate-elliptical, sometimes almost oblong. The leaf margin is notched, the leaf base wedge-shaped or rounded, the leaf end pointed or blunt. The upper side of the leaf is green, the underside glabrous and glaucous .

The inflorescences are short-cylindrical or elliptical catkins . The inflorescence axis glabrous or finely hairy. The bracts are broadly elliptical, slightly ciliate and bald on both sides. Male flowers have two nectar glands that are double or triple lobed, the abaxial can also have entire margins. Two stamens with separate, bare stamens are formed. The anthers are purple. Female flowers have a long and broad, sometimes split, adaxial nectar gland, the abaxial nectar gland is sometimes double-lobed or may be absent. The ovary is sessile and bare. The stylus is split, the scar doubly lobed. The fruits are about 5 millimeters long, narrowly egg-shaped or egg-shaped capsules . Salix faxonianoides flowers when the leaves shoot in May, the fruits ripen in June.

Distribution and ecology

The natural range is in the west of the Chinese province of Yunnan and in the east of the Tibet Autonomous Region . There it grows in thickets on mountain slopes.

Systematics

Salix faxonianoides is a kind from the kind of willow ( Salix ), in the family of the pasture plants (Salicaceae). There it is assigned to the Denticulatae section . It was first described scientifically in 1974 by Wang Zhan and Fu Pei Yun in Acta Phytotaxonomica Sinica .

There are two varieties :

  • Salix faxonianoides var. Faxonianoides : The inflorescence axis is hairless, the distribution area is at an altitude of 3600 to 3700 meters.
  • Salix faxonianoides var. Villosa S. D. Zhao  : The inflorescence axis is finely hairy, the distribution area is at an altitude of 4000 to 4300 meters.

Individual evidence

  1. ↑ a b c d e Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix faxonianoides In: Flora of China. Volume 4, p. 208.
  2. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix Sect. Floccosae In: Flora of China. Volume 4, p. 206.
  3. ^ Salix faxonianoides . In: The International Plant Name Index. Accessed March 27, 2015 .
  4. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix faxonianoides var. Faxonianoides In: Flora of China. Volume 4, p. 208.
  5. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix faxonianoides var. Villosa In: Flora of China. Volume 4, p. 208.

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. 206, 208 (English).

Web links