Impatiens

Great Balsam ( Impatiens noli - tangere )

The Spring herbs ( Impatiens ) form with about 900 species, the species far richer of the two genera of Balsaminengewächse ( Balsaminaceae ). All species of the genus are still fresh slightly toxic.

Description

Impatiens species are mostly annual or perennial herbaceous plants. The stem is usually fleshy to succulent. The leaves are simple. Stipules absent.

The hermaphrodite flowers are zygomorphic. It's just a circle with five stamens present. The ovary is upper constant. The pen is short or absent, and ends in one to five scars.

The fruit capsules are tensioned by cell sap pressure and possible rupture explosively on contact to pre-formed seams. The seeds are ejected into the environment (juice pressure spreader ). This is also where the botanical name: Impatiens (Latin ) means " impatient ". The same cause also has the name " touch-me - not - to " the Great jewelweed (Impatiens noli - tangere ).

Dissemination

Spring herbs are native to Eurasia, Africa and North America, with the greatest biodiversity in tropical and subtropical mountain countries in Africa, especially Madagascar, and Asia. In Europe, only a single species, the Great Balsam ( Impatiens noli - tangere ) is originally native. Several other species are naturalized fixed as neophytes.

Types (selection)

There are about 900 species in the genus Spring herbs ( Impatiens ):

  • Impatiens auricoma Baill. , Occurs only in the Comoros
  • Balfour's Balsam ( Impatiens balfourii Hook f ), originally occurs only in Western Himalayas, but is naturalized in Europe regional basis
  • Balsam, balsam (Impatiens balsamina L.) originates in India, China and the Malay peninsula, but is locally naturalized in Europe
  • Red Orange Balsam ( Impatiens capensis Meerb. ), Originally in Alaska, Canada and the United States before, but is naturalized in Europe regional basis
  • Colorful balsam ( Impatiens edgeworthii Hook. )
  • Himalayan or Indian balsam ( Impatiens glandulifera Royle ), originally only occurs in the Himalayas, but is naturalized in Europe and North America
  • Impatiens hawkeri W. Bull, is only found in New Guinea
  • Impatiens hians Hook. f, is found in western to central Africa
  • Impatiens marianae Rchb. f ex Hook. f, is found only in India
  • Impatiens niamniamensis Gilg, is found only in East Africa
  • Large balsam, touch-me - not -an ( Impatiens noli - tangere L.) is native to Europe and Asia, but is also naturalized in North America
  • Impatiens pallida Nutt.
  • Small Balsam Hoary or balsam ( Impatiens parviflora DC. ), Originally found only in Asia, but naturalized in Europe often
  • Impatiens platypetala Lindl., Is found only on Java and Sulawesi
  • Impatiens pseudo viola Gilg, Comes only in Kenya and Tanzania
  • Impatiens repens Moon, is found only in India and Sri Lanka
  • Impatiens sodenii Engl & Warblers. ex Engl, occurs only in Kenya and Tanzania
  • Busy Lizzie (Impatiens walleriana Hook f. ), Originally only found in Tanzania and Mozambique

Swell

  • Entry in the Flora of China. (English )
  • W. Erhardt et al: The big walleye. Encyclopedia of plant names. Volume 2 Eugen Ulmer Verlag, Stuttgart, 2008. ISBN 978-3-8001-5406-7

Pictures

Impatiens New Guinea hybrids in the greenhouse.

Himalayan balsam when popping

Asterids Ovary (botany) Stigma (botany)
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