Blunt-leaved privet
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| Ligustrum obtusifolium | ||||||||||||
| Siebold & Zucc. |
The blunt-leaved privet ( Ligustrum obtusifolium ) is a shrub belonging to the olive family . Its distribution area is in Japan, Korea and China. It is often used as an ornamental wood.
description
The blunt-leaved privet is a deciduous, 0.5 to 3 meter high, broad-growing shrub with finely hairy shoots and arching branches. The leaves have a 1 to 2 millimeter long, bald or hairy petiole. The leaf blade is simple, paper-like, 0.8 to 6 inches long and 0.4 to 2.5 inches wide, elliptical to oblong or oblong-obovate, pointed or obtuse with a broad wedge-shaped base. The upper side of the leaf is deep green and glabrous, the underside is hairy on the median nerve or as a whole. Three to five, rarely up to seven pairs of nerves are formed.
The flowers are 25 to 50 in more or less nodding, 1.5 to 4 centimeters long and 1.5 to 3 centimeters wide panicles , which sit in large numbers on short side branches. The white single flowers are sessile or stand on 2 millimeter long stems. They have an approximately 1 to 2 millimeter wide calyx , a 5 to 10 millimeter wide corolla and a corolla tube that is 1.5 to 2.5 times the length of the corolla lobes. The stamens reach to the middle of the corolla lobes, the anthers are lanceolate and 2 to 3 millimeters long. The fruits are round to broadly elliptical, 5 to 8 millimeters long and 4 to 6 millimeters wide, black and slightly frosted berries . The species blooms from May to June, the fruits ripen from August to October.
The number of chromosomes is .
Distribution and ecology
The natural range is in the temperate zone of Asia on the Japanese islands of Hokkaidō , Honshū , Kyushu and Shikoku , in the Chinese provinces of Heilongjiang , Jiangsu , Liaoning , Shandong and Zhejiang and in Korea. The species grows in thickets and hedges at heights of 100 to 600 meters on dry to fresh, weakly acidic to strongly alkaline, sandy or loamy-humic, moderately nutrient-rich soils in sunny to partially shaded locations. It is frost hardy.
Systematics and research history
The broadleaf privet ( Ligustrum obtusifolium ) is a kind of the genus of privet ( Ligustrum ) in the family of Oleaceae (Oleaceae), tribe Oleeae. The species was by Philipp Franz von Siebold and Joseph Gerhard Zuccarini in 1846 first described .
There are two or three subspecies:
- Ligustrum obtusifolium subsp. microphyllum (Nakai) PS Green : The subspecies forms 0.5 to 1.5 meter high shrubs with finely or slightly downy hairy branches and 0.8 to 3 centimeters long and 0.4 to 1.3 centimeters wide leaf blades. The calyx is 1 to 2 millimeters wide, the corolla 7 to 8 millimeters. The corolla tube reaches about 2.5 times the length of the corolla lobes. The distribution area is in Japan, Korea and in the Chinese provinces of Jiangsu and Zhejiang.
- Ligustrum obtusifolium subsp. obtusifolium
- Ligustrum obtusifolium subsp. suave (Kitagawa) Kitagawa : The subspecies forms 2 to 3 meter high shrubs with slightly downy-haired to downy-haired branches and 1.5 to 6 centimeters long and 0.5 to 2.5 centimeters wide leaf blades. The calyx is 1.5 to 2 millimeters wide, the corolla 5 to 10 millimeters. The corolla tube reaches about 1.5 to 2 times the length of the corolla lobes. The distribution area is in the Chinese provinces of Heilongjiang, Jiangsu, Liaoning, Shandong and Zhejiang.
use
The blunt-leaved privet is often used as an ornamental wood because of its decorative flowers and conspicuous fruits , although several varieties are differentiated.
proof
literature
- Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 3rd, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5614-6 , p. 371.
- Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 15: Myrsinaceae through Loganiaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1996, ISBN 0-915279-37-1 , pp. 306 (English).
- Gordon Cheers (Ed.): Botanica: Trees & Shrubs . Tandem, 2006, ISBN 3-8331-2003-7 , pp. 518 .
Individual evidence
- ↑ German name after Roloff et al .: Flora of the woods
- ↑ a b c d Roloff et al .: Flora der Gehölze , p. 371
- ↑ a b c d Mei-chen Chang: Ligustrum obtusifolium in Flora of China. Volume 15, p. 306
- ↑ Cheers: Botanica Trees & Shrubs , p. 518
- ↑ a b c Ligustrum obtusifolium. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed February 11, 2012 .
- ↑ Rafaël Govaerts (Ed.): Ligustrum obtusifolium. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved December 8, 2017.
- ↑ Mei-chen Chang: Ligustrum obtusifolium subsp. microphyllum in Flora of China. Volume 15, p. 306
- ↑ Mei-chen Chang: Ligustrum obtusifolium subsp. suave in Flora of China. Volume 15, p. 306
