Hairline leaf fennel

from Wikipedia, the free encyclopedia
Hairline leaf fennel
Oenanthe peucedaniifolia (28) .jpg

Hair-strand leaf fennel ( Oenanthe peucedanifolia )

Systematics
Order : Umbelliferae (Apiales)
Family : Umbelliferae (Apiaceae)
Subfamily : Apioideae
Tribe : Oenantheae
Genre : Water fennel ( Oenanthe )
Type : Hairline leaf fennel
Scientific name
Oenanthe peucedanifolia
Pollich

The hairline-leaved water fennel ( Oenanthe peucedanifolia ), also called hairline water fennel or hairline horse seed , is a species of the genus water fennel ( Oenanthe ) within the umbelliferae family (Apiaceae).

description

Double-gold inflorescence

The hair-strand-leaved water fennel grows as a perennial herbaceous plant that reaches heights of 30 to 60 centimeters. The stems are mostly hollow. The middle leaves are usually bipinnate. All leaves have linear-lanceolate sections.

The flowering period extends from May to July. Many flowers stand together in double-gold inflorescences . The umbel rays and fruit stalks are thin. The envelope has at most one envelope sheet. The sheaths are shorter than the flower stalks. The outer petals of the marginal flowers are 2 to 3 millimeters long.

The fruit donut is almost spherical. The double achane is elongated-egg-shaped with a length of 2.5 to 3.5 millimeters, its greatest width is in the middle; their style is less than 1 to rarely 2 millimeters long.

The number of chromosomes is 2n = 22.

Occurrence

The distribution area of the Haarstrang water fennel is in Western Europe and extends north to the Netherlands, in the south to Italy , the Balkan Peninsula and North Africa ( Algeria ). Its area includes Algeria, Spain, Portugal, France, Belgium, Luxembourg, Germany, the Netherlands, Switzerland, Italy, Croatia, Bosnia-Herzegovina, Albania, Montenegro, Macedonia, Bulgaria, Romania and Slovakia.

In Central Europe , the Haarstrang water fennel on the Rhine, south of Ludwigshafen am Rhein, reaches the eastern limit of its range north of the Alps . It rarely occurs in the Palatinate and Saarland ; it occurs sporadically in Savoy , as well as at the foot of the Alps as far as the Adda valley .

The hairline fennel thrives best on lime-poor , humus-rich , sandy or peaty , sometimes damp clay soils in areas with an average of high humidity. It inhabits swamp and bog meadows . It is a character species of the Caro-Juncetum acutiflori from the Juncion acutiflori association.

Taxonomy

Oenanthe peucedanifolia was first published in 1776 by Johann Adam Pollich . The specific epithet peucedanifolia means hairline-leaved.

literature

  • Otto Schmeil , Jost Fitschen (greeting), Siegmund Seybold: The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants. 95th completely revised u. exp. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
  • Eckehart J. Jäger (ed.): Excursion flora from Germany. Vascular plants: baseline. Founded by Werner Rothmaler . 20th, revised and expanded edition. Spektrum Akademischer Verlag, Heidelberg 2011, ISBN 978-3-8274-1606-3 .
  • Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg. Volume 4: Special part (Spermatophyta, subclass Rosidae): Haloragaceae to Apiaceae. Eugen Ulmer, Stuttgart 1992, ISBN 3-8001-3315-6 .
  • Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe. 2nd Edition. Volume 3. Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X .

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.  714 .
  2. ^ R. Hand (2011): Apiaceae. - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Data sheet Oenanthe

Web links

Commons : Fennel ( Oenanthe peucedanifolia )  - Collection of images, videos and audio files