Three-flowered nightshade

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Three-flowered nightshade
Three-flowered nightshade (Solanum triflorum), illustration

Three-flowered nightshade ( Solanum triflorum ), illustration

Systematics
Asterids
Euasterids I
Order : Nightshade (Solanales)
Family : Nightshade family (Solanaceae)
Genre : Nightshade ( solanum )
Type : Three-flowered nightshade
Scientific name
Solanum triflorum
Nutt.

The three-flowered nightshade ( Solanum triflorum ), also called common saracho nightshade , is a species of the nightshade genus ( Solanum ) within the nightshade family (Solanaceae). She comes from North America .

description

The three-flowered nightshade is an annual herbaceous plant that reaches heights of 15 to 100 centimeters. It is sparsely branched with prostrate side rungs. The above-ground parts of the plant, which are simply hairy to bristly, are odorless. The 2 to 7 centimeters long and 1.5 to 4 centimeters wide leaves are pinnate with linear-elongated leaf sections.

The flowers are seldom single, usually about three together. The hermaphrodite flowers are five-fold with a double flower envelope . The five petals are white. The flowering period extends from July to August.

The berries, which are glossy green and marbled white when ripe, are around 1 centimeter in diameter.

The number of chromosomes is 2n = 24.

Occurrence

The original distribution area of the three-flowered nightshade is North America . It is naturalized many times in Europe, for example in Holland and Belgium . In Germany it is a naturalized neophyte with only individual sites on the Lower Rhine (for example in port facilities ) and on the Upper Rhine near Mannheim .

The three-flowered nightshade colonizes nutrient-rich, mostly sandy, dry and warm locations, together with the Kali salt herb ( Kali turgida ).

Systematics

Solanum triflorum was first published by Thomas Nuttall . Solanum triflorum belongs to the Solanum section , which is sometimes also referred to as the Morella section or the Solanum nigrum complex, within the genus Solanum .

literature

  • Siegmund Seybold : The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants . Founded by Otto Schmeil , Jost Fitschen . 95th completely revised and expanded edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 , p. 667 .
  • 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 , p. 715 .
  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Published by the Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). 2nd corrected and enlarged edition. Eugen Ulmer, Stuttgart (Hohenheim) 2007, ISBN 978-3-8001-4990-2 , pp. 327 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi, Arno Wörz (eds.): The fern and flowering plants of Baden-Württemberg . tape 5 : Special part (Spermatophyta, subclass Asteridae): Buddlejaceae to Caprifoliaceae . Eugen Ulmer, Stuttgart (Hohenheim) 1996, ISBN 3-8001-3342-3 , pp. 57 .

Individual evidence

  1. ↑ a b c d e Three-flowered nightshade. In: FloraWeb.de.
  2. ↑ Solanum triflorum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis

Web links

Commons : Three-flowered nightshade ( Solanum triflorum )  - Collection of images, videos and audio files