Cockroach mullein

Cockroach mullein
Cockroach Mullein ( Verbascum Blattaria )
Systematics
Asterids Euasterids I Order : Mint family (Lamiales) Family : Figwort family (Scrophulariaceae) Genre : Mullein ( Verbascum ) Type : Cockroach mullein
Scientific name
Verbascum Blattaria
L.

The cockroach mullein ( Verbascum Blattaria ), also called cockwort , is a species of the mullein genus ( Verbascum ) in the figwort family (Scrophulariaceae). The specific epithet "Blattaria" is derived from the Latin word Blatta for "cockroach" and reminds, like the common German name , that this species was previously used to drive away cockroaches. It is an old crop against harmful insects.

description

Illustration from Flora Batava , Volume 2

Fruit cluster

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the characteristics are only marginally described

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Vegetative characteristics

The cockroach mullein is a perennial herbaceous plant and reaches heights of 50 to 100 centimeters. The alternate leaves are dark green and bare.

Generative characteristics

In a loosely racemose inflorescence , the flowers stand on long pedicels . The flowers are often covered in red on the outside. The petals are yellow, rarely white. Five stamens are formed. The stamens are colored purple and hairy woolly.

The number of chromosomes is 2n = 18 or 36.

ecology

The cockroach mullein is a hapaxanthe plant .

Occurrence and endangerment

The cockroach mullein is common in Europe , North Africa and the temperate zones of Asia. It grows on embankments, on roadsides and on rubble sites at altitudes of up to 800 meters. The cockroach mullein grows best on moderately dry to moderately fresh, alkaline and nutrient-rich loam and clay soils . It is in Central Europe, a characteristic species of the order Onopordetalia.

This article or paragraph presents the situation in Germany . Help us to describe the situation in other countries.

In Germany the cockroach mullein is considered endangered ("3+" according to the 1996 Red List of Endangered Plant Species ).

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literature

• Siegmund Seybold : Flora of Germany and neighboring countries. A book for identifying vascular plants that grow wild and often cultivated . Founded by Otto Schmeil , Jost Fitschen . 93rd completely revised and expanded edition. Quelle & Meyer, Wiebelsheim 2006, ISBN 3-494-01413-2 .
• Hans-Joachim Zündorf, Karl-Friedrich Günther, Heiko Korsch, Werner Westhus (eds.): Flora of Thuringia. The wild fern and flowering plants of Thuringia . Weissdorn, Jena 2006, ISBN 3-936055-09-2 .

Individual evidence

1. ↑ Ruprecht Düll , Irene Düll: Pocket dictionary of the Mediterranean flora. A botanical-ecological excursion companion to the most important species. Quelle & Meyer, Wiebelsheim 2007, ISBN 978-3-494-01426-5 , p. 353.
2. ↑ ^{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.  827 .
3. ^ Verbascum in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved December 21, 2017.

Web links

Commons : Cockroach Mullein ( Verbascum Blattaria )  - Album with pictures, videos and audio files

• Verbascum Blattaria L., Moth Mullein. In: FloraWeb.de.
• Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
• Cockroach mullein . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
• Verbascum Blattaria L. In: Info Flora , the national data and information center for Swiss flora . Retrieved February 29, 2016.
• Thomas Meyer: Mullein data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia ).