Weigela

Lovely Weigela ( Weigela florida )

The plant genus Weigela ( Weigela, Syn: weigelia ) now belongs to the subfamily Diervilloideae in the family of Honeysuckle ( Caprifoliaceae ). The genus Weigela ( Weigela ) currently contains about nine species. It is estimated the number of varieties 150 and 200, which are used as ornamental trees in parks and gardens. The genus name honors Weigela Christian Ehrenfried Weigel.

Description

Weigela are deciduous shrubs. Young twigs are slightly wrinkled and have a different fluffy hairy bark. The constantly against arranged on the branches leaves are petiolate or nearly sessile. The simple leaf blade has serrated leaf margins. Stipules are absent. The winter buds have several bud scales.

The inflorescences may be located terminally on the branches in the leaf axils or on short side branches. Most are two to six flowers in a zymösen inflorescence together or the flowers are individually. The hermaphrodite flowers are fünfzählig double perianth. The five sepals are fused at their base or at most up to the middle of its length to a narrow, cylindrical tube that ends with five calyx lobes. The five petals grow together bell-shaped or funnel- shaped, the corolla tube is narrow at its base and widens suddenly. The five Kronlappen are almost the same. The color of the petals is white, pink to carmine red (light yellow in Weigela middendorfiana ). The five stamens are fused to the middle of Kronblattröhre with this, they look depending on the nature of the flower tube a little out or are on the top in her skirts. The ovary is under constant zweikammrig. The slim style ends in a rounded or bipartite scar and jutting out from the flower tube.

The leathery or woody fruit capsules containing numerous small seeds. The seeds are wingless or have a narrow wing.

Dissemination

Weigela are common in the Northeast Asia, Japan, Korea, China and Russia's Far East.

Systematics and botanical history

The genus Weigela was described in 1780 by Carl Peter Thunberg. The most closely related genus is Diervilla, together with which it forms the subfamily Diervilloideae.

Species of the genus Weigela are:

  • Korean Weigela ( Weigela Thunb coraeensis, Syn. Diervilla coraeensis ( Thunb. ) DC, D. coraeensis f alba Voss, Weigela coraeensis f alba ( Voss ) Rehder. )
  • Nikko Weigela ( Weigela decora ( Nakai ) Nakai, Syn: Diervilla decora Nakai )
  • Rich flowering Weigela ( Weigela floribunda ( Sieb. & Zucc ) K.Koch, Syn. Diervilla floribunda Sieb & Zucc, Weigela floribunda var versicolor auct.. . )
  • Lovely Weigela ( Weigela florida ( Bunge) A.DC., Syn: Calysphyrum floridum Bunge, Diervilla florida ( Bunge) Sieb & Zucc. ).
  • Garden Weigela ( Weigela hortensis ( Sieb. & Zucc ) K.Koch, Syn. Diervilla Siebold & Zucc hortensis. )
  • Japanese Weigela ( Weigela japonica Thunb, Syn: .. .. Diervilla floribunda var versicolor ( Sieb. & Zucc ) Rehder, D. japonica ( Thunb. ) DC, D. versicolor Sieb & Zucc. )
  • Maximowiczs Weigela ( Weigela maximowiczii ( S.Moore ) Rehder, Syn: Calyptrostigma maximowiczii ( S.Moore ) Makino, Diervilla maximowiczii ( S.Moore ) Makino, D. middendorffiana var maximowiczii S.Moore )
  • Gold Weigela ( Weigela middendorffiana ( Carrière ) K.Koch, Syn: Diervilla middendorffiana Carrière )
  • Weigela subsessilis ( Nakai ) LHBailey ( Syn: Diervilla subsessilis Nakai )

Use

Weigela are disseminated cultivated as ornamental trees. Magnolia florida was introduced in 1845 by Robert Forune. There are numerous varieties, which usually reach about 2 m Height. They are not demanding with respect to the ground and endure exhaust and urban air. Bloom time is early summer, often occurs later a weaker second flowering. A pruning immediately after flowering to prevent an early senile of shrubs. Currently in Europe there are two well-known, large display collections:

  • Sheffield there in the National Plant Collection of the Botanic Garden and
  • Buckow ( Märkische Switzerland ) - in the " Weigela Sichtungsgarten ".
Asterids Ovary (botany) Stigma (botany)
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