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Salix daguanensis P. Y. Mao & P. X. He

Description

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Shrubs to 2 m tall. Juvenile branchlets brown pubescent at apex. Buds large, long ellipsoid, brown pubescent. Petiole 6-10 mm; leaf blade oblong-lanceolate, 4-8 × 1.2-2.4 cm, slightly sericeous when young, later only veins pilose abaxially, abaxially glabrous pubescent along midvein basally, adaxially green, base broadly cuneate or subrounded, margin indistinctly glandular serrate; veins raised abaxially. Flowering serotinous. Catkins slender, terete, 3-7 cm × ca. 4 mm; peduncle to 1.5 cm rarely absent, with 2 or 3 leaflets; rachis pilose; bracts yellow, oblong, margin white villous, apex rounded. Male flower: glands 2, rarely 1, adaxial and abaxial, entire or 2-parted or only one divided; stamens 2, rarely 3; filaments free, abaxially white pilose, ca. 2 × as long as bracts. Female flower: gland adaxial; ovary ovoid-conical, glabrous, sessile; style ca. 1 mm, 2-parted; stigma 2-lobed. Fl. Jul-Aug, fr. Oct.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 4: 199 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Distribution

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Yunnan (Daguan Xian, Yiliang Xian)
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 4: 199 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
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eFloras

Habitat

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* Mountains; 1700-2000 m.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 4: 199 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Salix daguanensis

provided by wikipedia EN

Salix daguanensis is a shrub in the willow genus Salix with 4 to 8 centimeter long leaf blades. The natural range of the species is in China.

Taxonomy

The species was described in 1987 by Mao Pin I and He Pi Xu in the Acta Botanica Yunnanica.[1]

Description

Salix daguanensis is a shrub up to 2 meters high. Young twigs are hairy brown at the tip. The buds are large, long ellipsoid and also hairy brown. The leaves have a 6 to 10 millimeter long petiole. The leaf blade is oblong-lanceolate, 4 to 8 inches long and 1.2 to 2.4 centimeters wide. The leaf margin is indistinctly serrated, the leaf base is broadly wedge-shaped to more or less rounded. Both sides of the leaf are initially slightly hairy, while older leaves only have fine hairs on the underside along the midrib. The leaf veins on the underside are protruding. The top of the leaf is green.[2]

The inflorescences are thin, petiolate, 3 to 7 centimeters long and about 4 millimeters in diameter catkins. The peduncle is up to 1.5 millimeters long, but can sometimes be missing. It has two or three leaflets. The inflorescence axis is finely hairy. The bracts are yellow, elongated and have a rounded tip and a white, hairy leaf margin. Male flowers usually have two, rarely only one whole or two-part nectar gland . Usually two rarely three stamens are formed. The stamens are free and have fine white hairs on the underside and about twice as long as the bracts. Female flowers have oneadaxial nectar gland. The ovary is ovoid-conical, hairless and sedentary. The stylus is divided into two parts and about 1 millimeter long, the stigma is bilobed. Salix daguanensis flowers only after the leaves have sprout from July to August, the fruits ripen in October.[2]

Range

The natural range is in the Chinese province of Yunnan in the districts of Daguan and Yiliang. Salix daguanensis grows in the mountains at altitudes of 1700 to 2000 meters.[2]

References

  1. ^ "Salix daguanensis". The International Plant Name Index. Retrieved 2014-01-02.
  2. ^ a b c Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix daguanensis. In: Flora of China. vol. 4, p. 199.
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Salix daguanensis: Brief Summary

provided by wikipedia EN

Salix daguanensis is a shrub in the willow genus Salix with 4 to 8 centimeter long leaf blades. The natural range of the species is in China.

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Wikipedia authors and editors
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wikipedia EN