Blue-green fiber visor

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Blue-green fiber visor
Blue-green fiber umbrella (Trinia glauca)

Blue-green fiber umbrella ( Trinia glauca )

Systematics
Euasterids II
Order : Umbelliferae (Apiales)
Family : Umbelliferae (Apiaceae)
Subfamily : Apioideae
Genre : Fiber umbrella ( Trinia )
Type : Blue-green fiber visor
Scientific name
Trinia glauca
( L. ) Dumort.

The blue-green fiber umbrella ( Trinia glauca ), also known as sherbet or small fiber umbrella , is a rare plant species in Central Europe within the umbelliferae family (Apiaceae). It blooms in April and May. The German-Russian doctor, poet and botanist Carl Bernhard von Trinius (1778–1844) is honored with the generic name Trinia .

description

Umbel of a male plant
Small bulbs of a female plant
fruit
Blue-green fiber umbrella (stem base with "tuft of fibers" and stem leaves) ( herbarium evidence )
Blue-green umbrella ( Trinia glauca ), male plant

The blue-green fiber umbrella grows as a biennial to perennial herbaceous plant and reaches heights of about 8 to 50 centimeters. It is rooted up to 20 centimeters deep. As is typical for two-year-olds, the plants usually die after the first seeds ripen. The male plants also die in the 2nd summer; because with the development of the branched flowering shoots, the reserves accumulated in the taproot in the previous year - as a completely inconspicuous rosette plant - are exhausted. All parts of the plant are bare. The stem is very branched and more or less bent back and forth. The plant is broadly branched from the bottom, so that it often forms a hemispherical growth. The leaves are gray-blue-green in color, the lower two or three pinnate. The pinnate sections are about 1 mm wide.

The blue-green fiber screen is dioeciously separated sex ( dioecious ). The male plant is noticeably lower than the female. A double-ended inflorescence is formed. The shell is missing, as is usually the case. Sometimes, however, these are present in one to three leaves. The little bulbs of the male plants are multi-flowered, those of the female plants four to eight flowered. The crown is whitish, about 0.3 mm long and shows a green or - in the flowers of the female plants - reddish central stripe on the back.

The ribs of the black-brown, about 3 mm long partial fruit are strongly protruding and blunt.

The number of chromosomes is 2n = 18.

ecology

The blue-green fibrous shield is a hemicryptophyte .

Occurrence and endangerment

The blue-green fiber umbrella is a sub-Mediterranean-subatlantic floral element . It occurs from the northern Mediterranean to Central and Western Europe as well as in Hungary and Romania. Trinia glauca is rarely found in Germany in Rhineland-Palatinate ( Mainzer Sand nature reserve ), the central Maing area and on limestone corridors of the Upper Rhine Valley.

In Austria and Switzerland it is rare and endangered. In Germany, the hazard is classified in Category 2, as highly endangered.

Trinia glauca grows in dry grass communities . The fiber umbrella prefers warm, mostly calcareous, stony or sandy soils. It is a Xerobromion association character, but also occurs in companies of the Festucion valesiacae association.

Subspecies

The following subspecies can be distinguished:

  • Trinia glauca subsp. glauca : It comes in Spain, Andorra, France, Corsica, Italy, Great Britain, Germany, Switzerland, Austria, Czech Republic, Hungary, Croatia, Montenegro, Albania, Macedonia, Greece, Bulgaria, Romania, Slovakia, Ukraine and in Turkey in front.
  • Trinia glauca subsp. carniolica (Janch.) H. Wolff : It occurs in Italy, Slovenia, on the Balkan Peninsula and in Romania.
  • Trinia glauca subsp. pindica Hartvig : It only occurs in Greece and the Aegean Sea.

literature

  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
  • Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria . Ed .: Manfred A. Fischer. Eugen Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .
  • Christian Heitz: School and excursion flora for Switzerland. Taking into account the border areas. Identification book for wild growing vascular plants . Founded by August Binz. 18th completely revised and expanded edition. Schwabe & Co., Basel 1986, ISBN 3-7965-0832-4 .
  • Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 6th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1990, ISBN 3-8001-3454-3 .
  • Konrad von Weihe (ed.): Illustrated flora. Germany and neighboring areas. Vascular cryptogams and flowering plants . Founded by August Garcke. 23rd edition. Paul Parey, Berlin / Hamburg 1972, ISBN 3-489-68034-0 .
  • Blue-green fiber visor. In: FloraWeb.de. (Ecology and hazard)

Individual evidence

  1. ↑ Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]
  2. ↑ a b c 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.  707 .
  3. ↑ a b c d Ralf Hand (2011): Apiaceae. Trinia glauca In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Berlin 2011.

Web links

Commons : Bluegreen fibrous umbrella ( Trinia glauca )  - album with pictures, videos and audio files