White-flowered primrose
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Illustration of the white-flowered primrose ( Primula chionantha ) |
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| Primula chionantha | ||||||||||||
| Balf.f. & Forrest |
The white-flowered primrose ( Primula chionantha ) is a plant from the family of the Primrose family ( Primulaceae belongs). In contrast to the common German name, the flowers are rarely white and usually purple-violet in color. It is based in China.
Description of Primula chionantha subsp. chionantha
Vegetative characteristics
The white-flowered primrose is a perennial herbaceous plant that reaches stature heights of 50 (rarely up to 70) centimeters. The foliage leaves standing together in basal rosettes each consist of a petiole and a leaf blade. The petiole is broadly winged. The very variable leaf blade is simple , with a length of 5 to 20 (rarely 25) centimeters and a width of 1 to 5 centimeters oblong-egg-shaped to lanceolate, bright yellow floury pollinated and often short-lived. The leaf margins are either finely serrated or almost entire.
Generative characteristics
The flowering period extends from May to July. The inflorescence shafts, which are powdered yellow in the upper area, are usually 20 to 50 (15 to 70) centimeters long. One to four dold-like partial inflorescences are stacked and each contain three or many flowers. The bracts are lanceolate to awl-shaped with a length of 0.5 to 1.5 centimeters. The dense, bright yellow floury pollinated flower stalks are initially 1 to 2.5 centimeters long and extend to 6 centimeters by the time the fruit is ripe.
The hermaphrodite, radial symmetry flowers are fünfzählig double perianth (perianth). The five external and internal sealing sparse floured, 8 to 10 (to 12) mm long sepals are almost adherent to the half-tube length to bell-shaped; the calyx teeth are elongated-lanceolate. The five purple-violet or rarely white petals are fused into a 1.1 to 1.3 centimeter long tube, the throat has a diameter of 2 to 3 centimeters and the broadly elliptical to almost obovate corolla lobes have entire margins. There is heterostyly , which means that the flowers are equipped with styluses of different lengths . In this species, the stylus is either only about 3 millimeters or as long as the corolla tube.
The cylindrical fruit capsules are about twice as long as the calyx .
Occurrence
The white-flowered primrose ( Primula chionantha subsp. Chionantha ) is native to the People's Republic of China in the east of the Tibet Autonomous Region or Xīzàng zìzhìqū ( Pinyin ), in the southwest of the Sichuan Province and in the north and northwest of the Yunnan Province . It occurs on wet meadows, on the edges of forests and under rhododendron species at altitudes of 3000 to 4400 meters.
use
The white-flowered primrose is used as an ornamental plant.
Systematics
The first description of Primula chionantha was made in 1915 by Isaac Bayley Balfour and George Forrest in Notes from the Royal Botanic Garden, Edinburgh , Volume 9, page 11. synonyms for Primula chionantha Balf.f. & Forrest are Primula ingens W.W.Sm. & Forrest and Primula sinopurpurea Balf.f. Primula chionantha belongs to the section Crystallophlomis in the subgenus Aleuritia within the genus Primula .
The following subspecies of Primula chionantha are named:
- Primula chionantha Balf.f. & Forrest subsp. chionantha
- Primula chionantha subsp. brevicula ( Balf.f. & Forrest ) AJRichards (Syn .: Primula brevicula Balf.f. < & Forrest )
- Primula chionantha subsp. melanops ( WWSm. & Kingdon-Ward ) AJRichards (Syn .: Primula melanops W.W.Sm. & Kingdon-Ward , an independent species in the Flora of China )
- Primula chionantha subsp. sinoplantaginea ( Balf.f. ) AJRichards (Syn .: Primula sinoplantaginea Balf.f. , an independent species in the Flora of China )
- Primula chionantha subsp. sinopurpurea ( Balf.f. ) AJRichards (Syn .: Primula sinopurpurea Balf.f. )
swell
literature
- Qiming Hu & Sylvia Kelso: Primulaceae. In: 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. 155 (English). Primula chionantha - Online | Comment = text identical to the printed work (section description and distribution of Primula chionantha subsp. Chionantha , because the subspecies listed here are separate species)
Individual evidence
- ↑ Primula cf. Chionantha. (No longer available online.) In: Kevock Garden Plants - online store. Formerly in the original ; accessed on December 25, 2010 (English). ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Taxon: Primula chionantha Balf. f. & Forrest. GRIN - Taxonomy for Plants. (No longer available online.) In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture Agricultural Research Service, Beltsville Area, formerly the original ; accessed on June 3, 2011 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
Web links
- Primula chionantha. Photo essay. In: www.mobot.org. Missouri Botanical Garden, accessed December 25, 2010 .