Radiant hollow seed

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Radiant hollow seed
Radiant hollow seeds (Bifora radians)

Radiant hollow seeds ( Bifora radians )

Systematics
Euasterids II
Order : Umbelliferae (Apiales)
Family : Umbelliferae (Apiaceae)
Subfamily : Apioideae
Genre : Loosely
Type : Radiant hollow seed
Scientific name
Bifora radians
M.Bieb.

The Radiant Hohlsame ( Bifora radians ) is an umbellifer that rarely occurs in Central Europe .

description

This species is an annual herbaceous plant ( therophyte ) that grows up to 40 cm high . She is completely bald. The leaves are cut 2 to 3 times pinnately. The lower ones have egg-shaped pinnate sections, the upper narrow linear end sections. The umbels have 3 to 8 small cones, each of which has 7 to 9 flowers. They have rayed, hermaphrodite marginal flowers with 2 to 4 mm long, white petals. The partial fruit is spherical, 3 to 3.5 mm in diameter and has a fine black surface without ridges connected like a network.

It blooms in the second half of June and July.

The chromosome number of the species is 2n = 20.

Location claims and distribution

Bifora radians grows on calcareous, basic, often skeletal , moderately dry soils. It occurs mainly in grain fields. It is a caucalidion association character in Central Europe.

The radial hollow seed occurs in Central and Southern Europe and Asia Minor up to Iran . Its distribution area includes Spain, France, Italy, Sicily, Austria, Slovenia, Albania, Serbia, Croatia, Bosnia-Herzegovina, Montenegro, Macedonia, Bulgaria, Romania, Ukraine, Turkey, Iran, Armenia, Georgia, Azerbaijan and Russia. In Germany and the Czech Republic he is a neophyte. In Austria it occurs scattered, in Switzerland it is rare and only introduced now and then.

Bifora radians occur in Germany scattered and rarely in the central and southern part of the area.

The species obviously only immigrated to Central Europe in historical times. The first observations from Germany date from around 1880.

photos

  • Bifora radians

  • Habitus

  • branch

  • Bifora radians ( herbarium evidence )

  • Umbel, bottom view

  • Fruit cluster

  • Döldchen with fruits

  • Partial fruits

  • Opened partial fruits

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 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg . tape 4 : Special part (Spermatophyta, subclass Rosidae): Haloragaceae to Apiaceae . Eugen Ulmer, Stuttgart (Hohenheim) 1992, ISBN 3-8001-3315-6 .
  • 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 .

Individual evidence

  1. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Page 705. Stuttgart, Verlag Eugen Ulmer, 2001. ISBN 3-8001-3131-5
  2. ^ Bifora in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 9, 2018.
  3. ↑ a b R. Hand (2011): Apiaceae. - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Data sheet Bifora

Web links

Commons : Strahliger Hohlsame ( Bifora radians )  - Collection of images, videos and audio files