Fleischer's willowherb

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Fleischer's willowherb
Fleischer's willowherb (Epilobium fleischeri)

Fleischer's willowherb ( Epilobium fleischeri )

Systematics
Eurosiden II
Order : Myrtle-like (Myrtales)
Family : Evening primrose family (Onagraceae)
Subfamily : Onagroideae
Genre : Willowherb ( epilobium )
Type : Fleischer's willowherb
Scientific name
Epilobium fleischeri
Maximum.

Fleischer's willowherb ( Epilobium fleischeri ) is a species of willowherb ( Epilobium ) or Chamaenerion within the family of the evening primrose family (Onagraceae). In Austria this species is also called mountain stream willowherb or gravel willowherb .

description

Vegetative characteristics

Fleischer's fireweed grows as a perennial herbaceous plant and reaches heights of 10 to 30 centimeters. It has numerous prostrate to arching stems that are slightly woody in the lower part. The alternately arranged leaves are sitting. The simple leaf blade is linear-lanceolate and serrated glandular.

Generative characteristics

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Bloom in detail

The flowering period extends from July to September. The stalked flowers are five to ten in a cluster . The sepals are deep red and narrow. The crown has a diameter of up to 3 centimeters with four pink-red petals .

The number of chromosomes is 2n = 36.

ecology

Fleischer's willowherb is an outspoken raw floor pioneer . With numerous runners and the seeds, which are airworthy thanks to its mop of hair, it quickly conquers new scree areas. With its striking flowers that attract insects, it can even run the risk of self-sterility.

Occurrence and endangerment

Fleischer's willowherb is only common in the Alps (especially in the western Alps ) from valleys to altitudes of 2700 meters. In the Allgäu Alps, it rises from 900 meters on the Ostrach near Hinterstein to an altitude of 1300 meters. This lime-avoiding species is a first-time colonist on gravel (banks), scree, river gravel, moraines and damp rubble. In Central Europe it is considered to be a character species of the Epilobietum fleischeri.

In Austria , Fleischer's willowherb can be found scattered in Tyrol and Vorarlberg and is considered endangered.

Fleischer's willowherb is threatened both by natural changes in location (shrubbery) and by human interference. Your last stocks deserve protection.

Systematics and history of discovery

This species was discovered by Franz von Fleischer (1801–1878), who later became a professor in Stuttgart-Hohenheim, on the Ortler in South Tyrol and named after him. It was first described as Epilobium fleischeri in 1826 by Christian Ferdinand Friedrich Hochstetter (1787–1860). According to the results of molecular genetic studies, this species is separated from Epilobium as Chamaenerion fleischeri ( Hochst. ) Fritsch . In North American literature, the synonym Chamerion fleischeri ( Hochst. ) Holub is often found.

literature

  • Xaver Finkenzeller, Jürke Grau: Alpine flowers. Recognize and determine (=  Steinbach's natural guide ). Mosaik, Munich 2002, ISBN 3-576-11482-3 .
  • Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria . Ed .: Manfred A. Fischer. Eugen Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .

Individual evidence

  1. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 684 .
  2. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings . Volume 2, IHW, Eching near Munich, 2004, ISBN 3-930167-61-1 , p. 246.
  3. ↑ Christian Ferdinand Friedrich Hochstetter: About the result of the botanical trip of the pharmacist Fleischer to Tyrol in the summer of 1825. In: Flora. Volume 9, No. 1, 6, 1826, pp. 81-86 ( here: p. 85 ).
  4. ^ Warren L. Wagner, Peter C. Hoch, Peter H. Raven: Revised Classification of the Onagraceae (= Systematic Botany Monographs. Volume 83). American Society of Plant Taxonomists, Ann Arbor, Mich. 2007, ISBN 978-0-912861-83-8 (PDF file).  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: dead link / si-pddr.si.edu  
  5. ↑ Alexander N. Sennikov: Chamerion or Chamaenerion (Onagraceae)? The old story in new words. In: Taxon. Volume 60, No. 5, 2011, pp. 1485-1488 ( abstract ).

Web links

Commons : Meat's Willowherb ( Epilobium fleischeri )  - Album with pictures, videos and audio files