Japanese Oregon grape

Japanese Oregon grape
Japanese Oregon Grape ( Mahonia japonica )
Systematics
Class : Bedecktsamer (Magnoliopsida) Eudicotyledons Order : Buttercups (Ranunculales) Family : Barberry family (Berberidaceae) Genre : Mahonia ( Mahonia ) Type : Japanese Oregon grape
Scientific name
Mahonia japonica
( Thunb. Ex Murray ) DC.

The Japanese Oregon grape ( Mahonia japonica ) is a plant from the family of the Barberry (Berberidaceae). Their original range is unknown; it has long been in culture in Japan and is known there under the name Hiiraginanten ( Japanese柊 天).

Leaves and flowers

blossoms

description

The Japanese Oregon grape is an evergreen shrub up to 2 meters high . The branches of the shrub are upright and not very branched. The leaves are up to 50 centimeters long; they consist of 7 to 19 leaflets that are oblong-ovate and up to 10 centimeters long; the leaflets are only slightly arched and have 3 to 7 thorny teeth on each side. The upper side of the leaf is glossy gray-green, the underside of the leaf is strikingly yellow-green (which is an important distinguishing feature compared to the otherwise very similar Beales Mahonia ( Mahonia bealei )). The flowers appear from February to May and are sulfur-yellow in color and strongly scented; they are in up to 20 centimeters long, loose bunches of 10 together. The fruits of the Japanese Oregon grape are egg-shaped, dark purple and frosted.

The number of chromosomes is 2n = 28.

use

This species is used as an ornamental shrub in gardens and parks. It is hardy in Central Europe .

various

With the Lomaria-leaved Oregon grape , the Japanese Oregon grape forms the hybrid Mahonia × media .

Mahonia japonica 'Bealei' is a synonym for Beales Oregon grape ( Mahonia bealei ).

Systematics

The basionym for the species is Ilex japonica Thunb. ; the corresponding plant description by the Swedish naturalist Carl Peter Thunberg was published in 1784. The first accepted description under the name Mahonia japonica by Augustin Pyrame de Candolle was published in 1821. The genre, however, is viewed as controversial; according to GRIN, the description by Robert Brown published in 1818 under the name Berberis japonica (Thunb.) R. Br. is the valid one.

literature

• Andreas Roloff , Andreas Bärtels: Flora of the woods . 2nd Edition. Eugen Ulmer, Stuttgart (Hohenheim) 2006, ISBN 3-8001-4832-3 .
• Robert Zander : Zander. Concise dictionary of plant names. Edited by Walter Erhardt , Erich Götz, Nils Bödeker, Siegmund Seybold . 17th edition. Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3573-6 .
• Gordon Cheers (Ed.): Botanica: The ABC of Plants. 10,000 species in text and images . 3rd, updated edition. Könemann, Cologne 2000, ISBN 3-8290-0868-6 .

Single references

1. ^ Mahonia japonica at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
2. ↑ JA Murray, Syst. veg. ed. 14: 168. 1784 May-Jun (Fl. Jap. 79. 1784 Aug). See entry on Ilex japonica at GRIN Taxonomy for Plants .
3. ↑ Syst. nat. 2:22. 1821. See entry in GRIN Taxonomy for Plants.
4. ^ JH Tuckey, fool. exped. Zaire (App. 5) 481. 1818. See entry on Berberis japonica in GRIN Taxonomy for Plants .

Web links

Commons : Japanese Oregon Grape ( Mahonia japonica )  - album with pictures, videos and audio files

• Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )