Rough marshmallow

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Rough marshmallow
Althaea hirsuta.jpg

Rough marshmallow ( Althaea hirsuta )

Systematics
Order : Mallow-like (Malvales)
Family : Mallow family (Malvaceae)
Subfamily : Malvoideae
Tribe : Malveae
Genre : Marshmallow ( Althaea )
Type : Rough marshmallow
Scientific name
Althaea hirsuta
L.
Althaea hirsuta

The Raue marshmallow ( Althaea hirsuta ), and redroot marshmallow called, is a plant from the genus of marshmallow ( Althaea ) in the subfamily of Malvoideae within the family of the Malvaceae (Malvaceae).

description

illustration

Vegetative characteristics

The rough marshmallow grows as an annual herbaceous plant that reaches heights of 30 to 60 centimeters. The leaf and flower stalks are covered with long, stiff bristle hairs ( indument ). The upper stalk leaves are three to five lobed up to the base and the middle stalk leaves palmate with three to five columns.

Generative characteristics

The flowering period extends from May to August. The flowers stand individually in the leaf axils and their stalks are longer than the bracts . The hermaphroditic flowers are five-fold and with a diameter of about 2.5 centimeters, radial symmetry . The outer sepals are 6 to 9 millimeters long and fused at the base. The five sepals are pointed. The five pink to pale lilac petals are 12 to 17 millimeters long and barely longer than the sepals.

The partial fruits are bare and wrinkled on the back.

The number of chromosomes is 2n = 50.

Occurrence

The original distribution area of the rough marshmallow is the Mediterranean area . In Central Europe it is only introduced and mostly unstable. In Central Europe it occurs sporadically in the Eifel , the Palatinate , in the Swabian-Franconian Muschelkalkgebiet , on the Baar , in Thuringia , in warmer areas of Switzerland , in Lower Austria , in Burgenland and in eastern Styria .

The rough marshmallow thrives best on calcareous loam or clay soils in locations with warm summers. He colonizes wasteland and root crop fields . It occurs mainly in societies of the Fumario-Euphorbion association, but can also be found in societies of the Caucalidion or Sisymbrion associations.

Taxonomy

Althaea hirsuta was first published in 1753 by Carl von Linné . A synonym for Althaea hirsuta L. is Dinacrusa hirsuta (L.) G.Krebs .

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 .
  • 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. 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 657.

Web links

Commons : Rauer Marshmallow ( Althaea hirsuta )  - Collection of images, videos and audio files