Purple Deutzia

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Purple Deutzia
Systematics
Nuclear eudicotyledons
Asterids
Order : Dogwood-like (Cornales)
Family : Hydrangea family (Hydrangeaceae)
Genre : Deutzia ( Deutzia )
Type : Purple Deutzia
Scientific name
Deutzia purpurascens
( Franch. Ex L. Henry ) Rehder

The purple deutzia ( Deutzia purpurascens ) is a small shrub with overhanging branches and white flowers that are overflowing with red on the outside, belonging to the hydrangea family (Hydrangeaceae). The natural range of the species is in western China. It is rarely planted as an ornamental shrub .

description

The purple deutzia is a 1 to 2 meter high shrub with overhanging, thin branches. The branches that carry flowers are 5 to 12 inches long and two to four leaved. The leaves have a 2 to 6 millimeter long stem. The leaf blade is simple, broadly ovate-lanceolate or ovate-elongated, 4 to 9.5 centimeters long and 2 to 2.8 centimeters wide, thinly leathery to membranous, long pointed or rarely pointed, with a rounded or broadly wedge-shaped base and finely serrated Leaf margin. The upper side of the leaf is rough and loose with three- to five-pointed star hairs with central hairs; the underside is greenish and covered with four to eight, rarely ten-rayed star hairs, the star hairs on the leaf veins also have centrally arranged hairs.

The inflorescences are 4 to 6 centimeters long and 5 to 7 centimeters in diameter, umbrella-shaped umbels of three to twelve 2 centimeter wide flowers . The flower stalk is 0.5 to 3 inches long. The flower cup is 2.5 to 3.5 millimeters long with a diameter of about 4 millimeters. The calyx lobes are lanceolate or oblong, leathery and 4 to 4.5 millimeters long. The petals are white and vivid red on the outside, elongated or obovate, 1.2 to 1.7 millimeters long, 5 to 8 millimeters wide, with a blunt tip. The outer stamens are 5 to 8 millimeters long, the teeth of the stamens extend beyond the anthers and the anthers are stalked and elongated. The inner stamens are shorter than the outer, the stamens are bilobed at the tip and the anthers grow outside about in the middle of the stamens. The three or four styles are slightly shorter to the same length as the stamens. The capsule fruits are hemispherical and about 4.5 millimeters in diameter. The calyx tips remain bent back on the fruits. The purple Deutzia flowers from April to June, the fruits ripen from June to October.

Occurrence and location requirements

The natural range is in the temperate zone of China in the province of Sichuan , in the southeast of Xizang and in Yunnan . The purple Deutzia grows in thickets at an altitude of 2600 to 3500 meters on fresh, weakly acidic to weakly alkaline, sandy-loamy to loamy, moderately nutrient-rich soils in sunny to light-shady locations. The species loves warmth and is usually frost hardy.

Systematics

The purple-Deutzie ( Deutzia purpurascens ) is a kind of the genus of deutzia ( Deutzia ). It is assigned to the subfamily Hydrangeoideae and the tribe Philadelpheae in the hydrangea family (Hydrangeaceae) . The species was in 1894 by Louis Henry first valid scientifically Deutzia discolor var. Purpurascens ( Basionym ) described . Alfred Rehder granted it species status in 1911. The genus name Deutzia is reminiscent of the Dutch councilor Johan van der Deutz (1790 to 1858) from Amsterdam, a sponsor of the Swedish naturalist Carl Peter Thunberg , who named the genus. The specific epithet purpurascens comes from Latin and means "turning purple-red".

use

The purple deutzia is sometimes used as an ornamental shrub because of its flowers .

proof

literature

  • Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 8: Brassicaceae through Saxifragaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 2001, ISBN 0-915279-93-2 , pp. 392 (English).
  • Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 3rd, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5614-6 , p. 265.
  • Jost Fitschen: Woody flora . 12th, revised and expanded edition. Quelle & Meyer, Wiebelsheim 2007, ISBN 3-494-01422-1 , p. 461 .
  • Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 (reprint from 1996).

Individual evidence

  1. ↑ German name after Roloff et al .: Flora der Gehölze , p. 265 and after Fitschen: Gehölzflora , p. 461
  2. ↑ a b c Huang Shumei, Hideaki Ohba, Shinobu Akiyama: Deutzia purpurascens , in: Wu Zheng-yi, Peter H. Raven (ed.): Flora of China . Volume 8: Brassicaceae through Saxifragaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 2001, ISBN 0-915279-93-2 , pp. 392 (English).
  3. ↑ a b c d Roloff et al .: Flora der Gehölze , p. 265
  4. ↑ a b Deutzia purpurascens. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed May 11, 2012 .
  5. ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 205
  6. ↑ Exactly: Etymological Dictionary of Botanical Plant Names, pp. 519-520

Web links

Deutzia purpurascens. In: The Plant List. Retrieved May 11, 2012 .