Lonicera maackii (Amur Honeysuckle) : 無料・フリー素材/写真
Lonicera maackii (Amur Honeysuckle) / wallygrom
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Highdown Gardens near Worthing, West Sussex.From Wikipedia -Lonicera maackii (Amur Honeysuckle or Bush Honeysuckle) is a species of honeysuckle in the family Caprifoliaceae, native to temperate Asia in northern and western China (south to Yunnan), Mongolia, Japan (central and northern Honshū, rare), Korea, and southeastern Russia (Primorsky Krai).The common name Amur Honeysuckle comes from the Amur River which is the world's eighth longest river. This river forms the border between the Russian Far East and Manchuria in China. L. maackii is native to the area surrounding this river. The species name maackii is derived from Richard Maack, a 19th century Russian naturalist.It is listed as an endangered species in Japan. It has escaped from cultivation and become naturalized in New Zealand and the eastern United States; in the forests of the latter, it has become an important invasive species.It is a deciduous large shrub growing to 6 m tall with stems up to 10 centimeters diameter. The leaves are oppositely arranged, 5–9 cm long and 2–4 cm broad, with an entire margin, and with at least some rough hairs on them. The flowers are produced in pairs, commonly with several pairs grouped together in clusters; they are 2 cm long, two-lipped, white later turning yellow or light orange in color; flowering is from mid spring to early summer.The fruit is a bright red to black semi-translucent berry 2–6 mm diameter containing numerous small seeds; they ripen in autumn, and are eaten by birds, which disperse the seeds in their droppings. It is fast growing and favours shady habitats such as the forest understory, neglected urban areas, and fence rows. It can form extremely dense thickets.It is grown as an ornamental plant for its attractive flowers, and also as a hedge. A number of cultivars have been selected for garden use, including 'Erubescens' with pink flowers, and 'Rem Red' with erect habit.The flowers are sometimes used by children, who remove the blossom by hand, and pull off the bottom to suck out the sweet nectar in the center. The red berries are mildly poisonous to humans and should not be eaten.As an invasive speciesSpread of this plant is illegal or controlled in some areas of the United States due to its well documented invasive character. It is listed as a "invasive, banned" species in Connecticut, "prohibited" in Massachusetts, and a "Class B noxious weed" in Vermont. It is also officially listed as an invasive species by government agencies in Wisconsin and Tennessee.This plant is adaptable and successful in a wide range of conditions. In the United States, Amur honeysuckle was once planted to control erosion, and as hedges. It spread quickly as birds eat the fruit and disperse the seeds, and was soon naturalized. Notably, in deciduous forest understories of the eastern United States it forms dense growths with thick canopies that shade out native shrubs, young trees, and wild flowers. Uncontrolled, these growths create a near monoculture of Amur Honeysuckle. This species poses a serious threat not only to the diversity of the ecosystems which they invade but also to forest regeneration itself. |
| 撮影日 | 2011-05-12 11:16:22 |
| 撮影者 | wallygrom |
| タグ | |
| 撮影地 | Ferring, England, United Kingdom 地図 |
| カメラ | Canon PowerShot SX200 IS , Canon |
| 露出 | 0.01 sec (1/100) |
| 開放F値 | f/3.4 |
| 焦点距離 | 5 mm |