Colutea

Bubble bush ( Colutea arborescens )

The bubble shrubs ( Colutea ) are a genus of flowering plants in the subfamily of the Fabaceae ( Faboideae ) within the legume family ( Fabaceae ). The genus includes 26 species.

Description

Bubble shrubs are deciduous shrubs or small trees. Some species have thorns. The change-constant leaves are pinnate. The constant against leaflets are entire.

The racemose inflorescences contain small bracts. The zygomorphic flowers are fünfzählig. The five sepals are fused. Of the five calyx teeth, the two upper ones are slightly shorter. The petals are pale yellow to orange. Nine of the ten stamens are fused together. The stalked ovary contains many ovules. The curved style ends in a large scar. Characteristic of this genus are the bubble -like, papery legumes. They contain many seeds.

Dissemination

Most members of this genus are native to western and central Asia. A few have their original distribution area in China, the Mediterranean and North Africa.

The best known species of this genus is the fast-growing shrub bladder ( Colutea arborescens ), which is sometimes planted as an ornamental shrub.

System

Within the genus Colutea 26 types can be distinguished. The following classification is based on the revision of the genus by K. Browicz (1963 ), quoted by Castillo (2002):

Section Colutea Browicz

  • Under section arborescentes Browicz
  • Colutea arborescens L.
  • Colutea armena Boiss. & Huet.
  • Colutea atlantica Browicz
  • Colutea cilicica Boiss. & Balansa
  • Colutea davisiana Browicz
  • Colutea insularis Browicz
  • Colutea melanocalyx Boiss. & Heldr.
  • Under section Acutfoliae Browicz
  • Colutea acutifolia Shapar.
  • Under section Africanae Browicz
  • Kunth & Bouché Colutea abyssinica
  • Under section graciles Browicz
  • Colutea gracilis Freyn & Sint. ex Freyn
  • Colutea hybrida Shapar.
  • Colutea istria Mill
  • Colutea persica Boiss.

Section Muluflora Browicz

  • Colutea delavayi Franch.
  • Colutea multiflora Shapar. ex Ali

Section Rostrata Browicz

  • Under section Orientales Browicz
  • Colutea atabajevi B.Fedtsch.
  • Colutea jamnolenkoi Shapar.
  • Colutea orientalis Mill
  • Under section Centralasiaticae Browicz
  • Colutea afghanica Browicz
  • Colutea buhsei ( Boiss. ) Shapar.
  • Colutea gifana Parsa
  • Colutea nepalensis Sims
  • Colutea paulsenii Freyn

Section Armata

  • Colutea armata Hemsl. & Lace
  • Colutea komarovii Takht.
  • Colutea uniflora

Swell

  • SI Ali: Papilionaceae in Flora of Pakistan, p 91: Colutea - Online.
  • Hornero Javier del Castillo: Aspectos taxonómicos en el género Colutea ( Fabaceae ) (PDF file, 10.82 MB). Tesis de la Universidad Complutense de Madrid, Facultad de Ciencias Biológicas, Departamento de Biología Vegetal I ( Botánica y fisiologia Vegetal ). , 2002.
Rosids Galegeae Ovary (botany) Stigma (botany)
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