Rosa bella
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| Rehder & EHWilson |
Rosa bella is a plant from the genus roses ( Rosa ) within the family of the rose family (Rosaceae). It occurs in China .
description
Appearance and leaf
Rosa bella grows a shrub and reaches heights of 1 to 3 meters. The branches are round and relatively thin. The scattered spines are up to 1 centimeter long, stalk-round and straight or slightly curved and abruptly narrow to their base. Older branches are often heavily armed with bristles.
The alternately arranged leaves are divided into petioles and leaf blades and a total of 4 to 11 centimeters long. The petiole and the rhachis leaf are glabrous or sparsely hairy and prickly or sparsely glandular and hairy and short-prickly. The leaf blade is oddly pinnate with rarely five, usually seven or nine leaflets. The leaflets are 1 to 3 centimeters long and 0.6 to 2 centimeters wide, elliptical, egg-shaped or elongated, almost rounded base, pointed or rounded-blunt upper and simply serrated edge. The leaflets are glabrous on both sides or sparsely downy and hairy on the underside along the veins . The two relatively wide stipules are fused with the petiole for most of their length. The free part of the stipules is glabrous, ovate with a pointed upper end and a glandular serrate edge.
Flower and fruit
The flowering period in China extends from May to July. The flowers stand individually or in pairs or threes in small clusters on a 5 to 10 mm long peduncle. The bald bracts are ovate-lanceolate with a pointed upper end and a glandular-serrate edge.
The medium-strong, well-scented, hermaphrodite flowers are 2 to 5 centimeters in diameter and have radial symmetry and five-fold with a double flower envelope . The flower cup (hypanthium) is ellipsoidal-egg-shaped. The five leaf-like sepals are ovate-lanceolate, with entire margins with stalked glands on the underside and the top is hairy with dense downy hair. The five free violet to pink petals are obovate with a wedge-shaped base and edged upper end. The many stamens are much longer than the style. The free styles are densely hairy shaggy.
The rose hips, which are dark red when ripe, have a diameter of 1 to 1.5 centimeters and are ellipsoidal-egg-shaped with a short collar at the top; they can be hairy with stalked glands. The rose hip is crowned by the durable sepals. The rose hips ripen in China from August to October.
Systematics, botanical history and distribution
The first description of Rosa bella was made in 1915 by Alfred Rehder and Ernest Henry Wilson in Plantae Wilsonianae to enumeration of the woody plants collected in western China for the Arnold Arboretum of Harvard University during the years 1907, 1908 and 1910 by EH Wilson edited by Charles Sprague Sargent ... , Volume 2, 2, pp. 341-342. The specific epithet bella is derived from the Latin word bella for beautiful. It was found in 1910 in northwest China's Shanxi Province, and seeds (batch number 314) were sent to the Arnold Arboretum at Harvard University, Massachusetts by William Purdom . From these seeds specimens were cultivated in the Arnold Arboretum, which then, as type material , formed the basis of the first description in June 1915.
Rosa bella belongs to the section Cinnamomeae in the subgenus Rosa within the genus ( Rosa ).
Rosa bella thrives in the bushes on river banks and at the foot of mountains at altitudes of up to around 1700 meters in the Chinese provinces of Hebei , Henan , Jilin and Shanxi .
There are two varieties of Rosa bella Rehder & EHWilson :
- Rosa bella Rehder & EHWilson var. Bella (Syn .: Rosa bella f. Pallens Rehder & EHWilson ): It occurs in the entire range of this species. The flowers are 4 to 5 centimeters in diameter. The flower stalk and flower cup is hairy glandular and downy.
- Rosa bella var. Nuda T.T.Yu & Tsai : It only thrives in shrubs in Song Shan in north-central Henan and in Zhongnan Shan in south-central Shaanxi. The flowers have a diameter of 2 to 3 centimeters. The flower stalk and flower cup are bald and not hairy glandular or downy.
use
Rosa bella is a wild rose with a medium strong fragrance and is used as an ornamental plant.
The essential oils of the flowers are used to extract rose oil . Jam is made from the rose hips of Rosa bella . Flowers and fruits are used medicinally.
swell
- Gu Cuizhi, Kenneth R. Robertson: Rosa. : Rosa bella p. 361 - the same text online as the printed work , In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China , Volume 9 - Pittosporaceae through Connaraceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2003. ISBN 1-930723-14-8 (Sections Description, Distribution and Systematics)
Individual evidence
- ↑ a b c d e f g h i j k l Gu Cuizhi, Kenneth R. Robertson: Rosa. : Rosa bella p. 361 - the same text online as the printed work , In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China , Volume 9 - Pittosporaceae through Connaraceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2003. ISBN 1-930723-14-8
- ↑ a b Rehder & Wilson 1915 scanned at biodiversitylibrary.org .
- ↑ Rosa bella at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed November 30, 2014.
- ↑ Rosa bella in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved November 30, 2014.
- ↑ a b data sheet from Roger's Roses . ( Memento of the original from January 6, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Brief information at World of Roses by Maria Mail-Brandt.
