Rosa longicuspis
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Rosa longicuspis |
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| Bertol. |
The Pink longicuspis is a plant from the genus of roses ( Rosa ) within the family of the rose family (Rosaceae). It is common in Assam as well as in southwestern China . It is used as an ornamental plant.
description
Appearance and leaf
Rosa longicuspis grows as a mostly evergreen, climbing or climbing shrub that reaches heights of 1.5 to 6 meters and a diameter of about 3.5 meters. The bark of the branches is purple-brown. The sparsely or sparsely occurring spines are 5 millimeters long, curved, strong, flat and gradually taper to a broad base.
The alternate leaves are arranged in a petiole and a leaf blade and are 7 to 14 centimeters long. The petiole and the rhachis leaf are bare and have few hooked spines. The two stipules are usually fused with the petiole. The free area of the stipules is lanceolate and often hairy glandular and downy. The leaf blade is pinnate unpaired with five to nine leaflets. The leathery leaflets are 3 to 7, rarely up to 11 centimeters 1 to 3.5, rarely up to 5 centimeters ovoid to elliptical or ovoid-elongated with a nearly rounded or broadly wedge-shaped base, more or less long, pointed upper end and pointed edge. The leaflets are glabrous on both sides; the top is shiny and can be wrinkled. A raised central nerve is clearly visible on the underside of the leaflets.
Inflorescence, flower and fruit
The flowering period extends from May to July. Am " perennial wood " are rarely up to 5 centimeters with a diameter of 3 to 4, schirmrispigen inflorescences , each of which contain many formed (up to 15) flowers. The bracts are ovate-elongated and hairy on the edge glandular-downy. The 1.5 to 3.5 centimeter long peduncle is sparsely downy and hairy with dense glandular and downy hair. The flower buds are narrow-egg-shaped.
The hermaphroditic, slightly sweet-fruity-scented flowers are about 5 centimeters in diameter, radial symmetry and five-fold with a double flower envelope . The flower cup (hypanthium) is ovate or obovate and sparsely downy and hairy with dense glandular and downy hair. The five curved sepals , which fall before the fruit ripens, are 0.8 to 1.2 centimeters long and lanceolate, with downy hairs on both sides, on the underside there are also glandular hairs in between, the edge is simple or slightly lobed and the upper end is long pointed. The five free white or creamy white petals are broadly obovate with a broad, wedge-shaped base and "bitten" upper end; their underside is hairy silky. The many stamens are slightly shorter than the style. The many downy, hairy styluses are fused into a column and tower above the petals.
The rose hips, which are dark or orange-red when ripe, are bald and have a diameter of 1 to 1.2 centimeters and are relatively small and obovate. The fruits ripen in China from July to November.
Systematics and distribution
The first description of Rosa longicuspis was made in 1861 by Antonio Bertoloni in delle Memorie della Reale Accademia Scienze dell 'Istituto di Bologna , vol 11, p 101, Table. 13
Rosa longicuspis belongs to the section Synstylae in the subgenus Rosa within the genus Rosa .
There were two varieties of Rosa longicuspis Bertol. described:
- Rosa longicuspis Bertol. var. longicuspis ( Syn. : Pink charbonneaui H.Lév. , Rosa lucens Rolfe , Rosa moschata var. yunnanensis CREP. , Rosa willmottiana H.Lév. , Rosa yunnanensis (CREP). Boulenger ): Natural resources are found in the Eastern Himalayas : in north-eastern India in the Assam region and in the south-western Chinese provinces of Guizhou , Sichuan and Yunnan . It thrives in China at altitudes of 1000 to 2000 meters in evergreen mixed forests, thickets, bushes and in dry open locations.
- Rosa longicuspis var. Sinowilsonii ( Hemsley ) TTYü & TCKu (Syn .: Rosa sinowilsonii Hemsley ): It occurs in Guizhou, Sichuan and Yunnan.
One of the editors of the Rosaceae in the Flora of China , Kenneth R. Robertson, prefers not to differentiate between varieties in this species. They would then all be synonyms of this kind.
Culture conditions
The wild rose Rosa longicuspis is a robust, very vigorous climbing rose . It is frost hardy to −23 ° C and thrives in USDA climate zones 6a to 10b. Soil pH should be 6-8. Sunny, dry locations are tolerated. It is (profusely) blooming once.
A vegetative propagation via cuttings from non-woody shoot axes is possible, but sowing is far more common. In autumn, seeds are sown outdoors directly on the spot or from January in a cold frame or cold house . When sowing under glass, the seeds must be stratified beforehand.
Pink longicuspis sometimes with pink mulliganii confused Boulenger and under that name partly in trade offered.
swell
- Gu Cuizhi, Kenneth R. Robertson: Rosa. : Rosa longicuspis , p. 375 - online with the same text 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 Gu Cuizhi, Kenneth R. Robertson: Rosa. : Rosa longicuspis , p. 375 - online with the same text 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 data sheet at Dave's Garden .
- ↑ a b data sheet from Roger's Roses . ( Memento of the original from December 24, 2015 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.
- ↑ Rosa longicuspis in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved November 29, 2014.
- ↑ Rosa longicuspis at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed on November 29, 2014.
- ↑ a b Volker Wissemann: Conventional taxonomy of wild roses. In: Encyclopedia of rose science , Elsevier London, 2003.
- ↑ a b Volker Wissemann, Christiane M. Ritz: The genus Rosa (Rosoideae, Rosaceae) revisited: molecular analysis of nrITS-1 and atpB-rbcL intergenic spacer (IGS) versus conventional taxonomy. In: Botanical Journal of the Linnean Society , Volume 147, Issue 3, 2005, pp. 275-290. doi : 10.1111 / j.1095-8339.2005.00368.x
- ↑ a b Brief information on World of Roses by Maria Mail-Brandt.
Web links
- Photos with indication of origin.
- Herbarium evidence from the Herbarium of the Royal Botanic Gardens Kew.
- Herbarium evidence.
further reading
- Qin Qiuxian, Xue Tangkai, Gang Wangqi, Ying Jianhong, Fa Lishu, Hua Shaozhu, Hao Zhang: Genetic Diversity Analysis of populations of Rosa longicuspis In: Journal of Plant Genetic Resources , Volume 14, Number 1, January 15, 2013, pp. 86-91. (only abstract in English, the main part is in Chinese language and script)