Forsythia suspensa
Hanging forsythia ( Forsythia suspensa )
The slopes Forsythia ( Forsythia suspensa ) is a golden yellow flowering shrub of the family Oleaceae ( Oleaceae ). The natural range of the species is located in the temperate zone of China. It is very often used as an ornamental shrub.
Description
The slopes Forsythia grows as an upright to strongly overhanging shrub, reaching stature heights of 1 to 2 meters. The branches are terete and yellow-brown or gray-brown. The pith of the branches is chambered. The leaves are divided into petiole and leaf blade. The petiole is glabrous or sometimes pubescent and 8 to 15 millimeters long. The leaf blade is simple or rarely three-lobed or trifoliate. It is 2 to 10 inches long, 1.5 to 5 cm wide, ovate, broadly ovate or oval - ovate, pointed with a rounded or wedge- shaped base and serrated leaf edge. Both sides are bare or rarely pubescent, the base can be hairy shaggy particularly along the leaf veins.
The flowers appear singly, in pairs or more long in the axils of 5 to 6 mm stems. The calyx is about 2.5 inches long, with oblong, rarely 5 mostly 6-7 mm long, calyx lobes ciliated. The corolla is yellow and the corolla tube is shorter or about the same length as the sepals. The corolla lobes are 7-15 mm long, oblong or obovate oblong. The stamp is about 3 millimeters long in flowers with 3-5 mm long stamens 5-7 mm long, in flowers with 6 to 7 millimeters stamens. The capsule fruit is 12-25 mm long and 6-12 mm wide, ovoid to ellipsoid and with scattered long occupied Korkporen. The slopes Forsythia blooms from March to April, the fruits ripen from July to September.
Occurrence
The natural range is located in the temperate zone in the western Chinese province of Anhui, Hebei, Henan, Hubei, Shaanxi, Shandong, Shanxi and Sichuan. It grows in steppes and dry forests in 300-2200 meters on moderately dry to moderately moist, slightly acidic to alkaline, sandy- loamy to loamy, fertile soil in full sun to light shade locations. The species is thermophilic and usually frost hardy.
System
The slopes Forsythia ( Forsythia suspensa ) is a species in the genus Forsythia ( Forsythia ) in the family Oleaceae ( Oleaceae ). There it is the tribe assigned Forsythieae. Carl Peter Thunberg has first described the species in 1784 as Syringa suspensa ( basionym ), and assigned it to the genus of lilac (Syringa ). Vahl presented the type 1804 in the genus forsythia. The genus name Forsythia is reminiscent of the English botanist William Forsyth, the epithet suspensa comes from the Latin, means " suspended" and refers to the hanging branches.
Some authors distinguish three varieties:
- Forsythia suspensa var suspensa
- Forsythia suspensa var fortunei
- Forsythia suspensa var sieboldii
These are not usually recognized.
Use
The slopes Forsythia is often planted as an ornamental because of the decorative flowers. The fruits are used in China to treat fever and symptoms of poisoning.
We distinguish between different cultivars, including:
- ' Decipiens ' with mostly solitary, deep yellow and long-styled flowers.