Shield Speedwell

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Shield Speedwell
Shield speedwell (veronica scutellata)

Shield speedwell ( veronica scutellata )

Systematics
Euasterids I
Order : Mint family (Lamiales)
Family : Plantain family (Plantaginaceae)
Tribe : Veroniceae
Genre : Speedwell ( Veronica )
Type : Shield Speedwell
Scientific name
Veronica scutellata
L.

The shield speedwell ( Veronica scutellata ) is a species of plant in the plantain family (Plantaginaceae).

description

Stems and leaves are often reddish-brown in places
Illustration from storm

Vegetative characteristics

The shield speedwell is an evergreen perennial herbaceous plant that reaches heights of 15 to 50 centimeters. The ascending to erect stem is branched and occasionally roots at its nodes . The stalk, which is sometimes overgrown with brown, is often bent back and forth, almost always bare and more or less limp.

The leaves are sessile. The simple leaf blades are about 6 centimeters long and 3 to 10 millimeters wide, narrow-lanceolate, with entire to indistinctly serrated, glabrous and shiny.

Generative characteristics

The flowering time is mainly in the months of June to September. 5 to 15 flowers are grouped together in a loose, racemose inflorescence . The flower stalks are three to five times as long as the bracts and are directed downwards towards the anthesis .

The hermaphroditic flowers have a diameter of 5 to 6 millimeters and are slightly zygomorphic with a double flower envelope . The crown is colored white and veined bluish or reddish.

The heart-shaped, strongly flattened capsule fruit is at least 5 millimeters wide, often twice as long as the calyx and has deep margins in the upper and lower parts.

The number of chromosomes is 2n = 18.

Occurrence and endangerment

The shield speedwell is widespread in the northern hemisphere in much of Europe , northern Asia and North America . It is also found in Algeria. In Germany the Schild-Ehrenpreis is widespread to scattered, in Austria and Switzerland scattered to rare. In Austria this species is considered endangered.

The shield speedwell is a distinctive plant species in moderately nutrient-rich intermediate bogs and alternately wet riparian zones. It grows in Braunseggen swamps , in Großseggenrieden , in Strandling societies, in silting areas of water and in ditches. It occurs in Central Europe in societies of the associations Caricion fuscae, Caricion lasiocarpae, Magnocaricion, but also of the order Littorelletalia. It prefers wet, partly flooded, moderately acidic and moderately nutrient-rich, humus-rich, lime-poor locations on peaty or sandy-gravelly soils .

Taxonomy

The first publication of Veronica scutellata was in 1753 by Carl von Linné .

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 .
  • 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. ↑ Veronica scutellata L., Schild speedwell. In: FloraWeb.de.
  2. ↑ Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
  3. ↑ 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.  844-845 .
  4. ↑ Veronica on the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved December 19, 2017.
  5. ↑ Karol Marhold: Scrophulariaceae. 2011: data sheet Veronica scutellata In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
  6. ↑ Veronica scutellata at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 11, 2016.

Web links

Commons : Shield Speedwell ( Veronica scutellata )  - Album with pictures, videos and audio files