Petite Deutzie

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Petite Deutzie
Habitus

Habitus

Systematics
Nuclear eudicotyledons
Asterids
Order : Dogwood-like (Cornales)
Family : Hydrangea family (Hydrangeaceae)
Genre : Deutzia ( Deutzia )
Type : Petite Deutzie
Scientific name
Deutzia gracilis
Siebold & Zucc.

The petite Deutzia ( Deutzia gracilis ) is a small shrub with white flowers from the hydrangea family (Hydrangeaceae). The natural range of the species is in Japan and Taiwan . It is often used as an ornamental shrub because of its decorative flowers . It is also known under the name may flower bush .

description

Leaves and flowers of the cultivar 'Nikko'

The dainty Deutzia is a broad, upright, bushy and finely branched shrub up to 1.5 meters high . Twigs bearing flowers are brown, 5 to 17 centimeters long, glabrous and usually four-leaved. The leaves have a 2 to 4 millimeter long stem. The leaf blade is light green, simple, lanceolate, oval-lanceolate or broadly ovate-lanceolate, 3 to 4.5 inches long and 1 to 1.2 inches wide, pointed long, with a wedge-shaped base and a finely serrated edge. Three or four pairs of nerves are formed. The upper side of the leaf is covered with three or four-pointed star hairs, the underside with four or five, rarely six-pointed star hairs.

The inflorescences are 8 to 12 centimeters long, upright racemes or narrow panicles of 12 to 25 flowers with a bare inflorescence spindle. The flower stalk is thin and 5 to 10 millimeters long. The flower cup is 2.5 to 3 millimeters long with a diameter of about 2.5 millimeters. The calyx lobes are 1.5 centimeters long, ovate to ovate-triangular, glabrous or loosely hairy. The petals overlap like roof tiles, they are white, 10 to 12 millimeters long and 4 to 6 millimeters wide, oblong to oblong-lanceolate. The outer stamens are 5 to 6 millimeters long with bidentate or awl and imperforate stamens and stalked, egg-shaped anthers. All inner stamens are bidentate. The three styles are the same length or slightly longer than the outer stamens. The capsule fruits are hemispherical and about 5 millimeters in diameter. The petite Deutzia blooms, depending on the geographical location, from March to April (flora of China) or in Central Europe from May to June.

The number of chromosomes is 2n = 26.

Occurrence and location requirements

The natural range is on the Japanese islands of Honshū , Kyushu and Shikoku and on Taiwan . The petite Deutzia grows in cool, moist forests and on shrub areas on well-drained, fresh to moist, acidic to neutral, sandy or gravelly humus soils in sunny to light-shady locations. The species is mostly frost hardy, but avoids chalky soils.

Systematics

The deutzia gracilis ( Deutzia gracilis ) 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 first scientifically described in 1835 by Philipp Franz von Siebold and Joseph Gerhard Zuccarini . 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 gracilis comes from Latin and means "thin" or "delicate".

use

Deutzia gracilis, star hair, 40 lens, polarized light

The petite Deutzia is often used as an ornamental shrub because of its decorative 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. 385 (English).
  • Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 4th, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2014, ISBN 978-3-8001-8246-6 , pp. 278f.
  • Jost Fitschen: Woody flora . 12th, revised and expanded edition. Quelle & Meyer, Wiebelsheim 2007, ISBN 3-494-01422-1 , p. 460 .
  • 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. 263 and after Fitschen: Gehölzflora , p. 460
  2. ↑ a b Huang Shumei, Hideaki Ohba, Shinobu Akiyama: Deutzia gracilis , 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. 385 (English).
  3. ↑ a b c d Roloff et al .: Flora der Gehölze , p. 263
  4. ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 493.
  5. ↑ a b Deutzia gracilis. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed May 9, 2012 .
  6. ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 205

Web links

Commons : Deutzia gracilis  - collection of images, videos and audio files