Stranger Speedwell
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Stranger Speedwell ( Veronica peregrina ) |
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The foreign speedwell ( Veronica peregrina ) is a species of plant in the plantain family (Plantaginaceae). It is a naturalized neophyte in Central Europe .
description
The foreign speedwell grows as an annual herbaceous plant and reaches heights of between 5 and 30 cm. The upright stem , usually branched in the lower part, is glabrous ( Veronica peregrina subsp. Peregrina ) to scattered glandular-downy hair ( Veronica peregrina subsp. Xalapensis ).
The bare, somewhat bluish-green leaves are elongated-elliptical or obverse-ovoid in shape. They are entire or notched-serrated and three to five times as long as they are wide. The upper leaves are usually narrower and almost spatulate.
The foreign speedwell blooms mainly in the months April to June. The flowers stand together in terminal, moderately elongated, racemose inflorescences. The bracts are several times longer than the flowers. The hermaphrodite flowers are 3 to 5 mm in diameter. The crown is bluish or white and usually has no stripes.
The capsule fruit is round to heart-shaped, somewhat puffy and completely bare. It is surmounted by the chalice.
The number of chromosomes is 2n = 52.
Occurrence
The Foreign Speedwell comes from the mountainous areas of Central and South America and has a sub-oceanic tendency to spread. The foreign honorary award can now also be found in Europe, Australia and East Asia.
In Germany, Austria and Switzerland, Veronica peregrina occurs absent-mindedly or rarely. In some areas, for example in southwest Germany, it has already become naturalized and can be found quite often.
The foreign price of honor grows in small sedge societies, on banks, ditches, in fields and on roadsides. It usually prefers damp, heavy loam or clay soils . It occurs in Central Europe in societies of the associations Bidention tripartitae, Agropyro-Rumicion, Nanocyperion and in those of the order Convolvuletalia sepium.
Systematics
One can distinguish the following subspecies:
- Veronica peregrina L. subsp. peregrina
- Veronica peregrina subsp. xalapensis (Kunth) Pennell : It occurs in Slovenia.
literature
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2000, ISBN 3-8001-3364-4 .
- Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria. Ed .: Manfred A. Fischer . Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .
- August Binz , Christian Heitz: School and excursion flora for Switzerland , Schwabe & Co. AG, Basel, 1986, ISBN 3-7965-0832-4
- Erich Oberdorfer : Plant-sociological excursion flora , Ulmer Verlag, Stuttgart, 1990, ISBN 3-8001-3454-3
- Christian August Friedrich Garcke : Illustrierte Flora , 1972, Paul Parey publishing house, ISBN 3-489-68034-0
Individual evidence
- ↑ 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. 840 .
- ↑ a b Karol Marhold, 2011: Scrophulariaceae : data sheet Veronica peregrina In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Web links
- Stranger Speedwell. In: FloraWeb.de.
- Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
- Stranger Speedwell . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Veronica peregrina L. In: Info Flora , the national data and information center for Swiss flora . Retrieved March 7, 2016.
- Distribution in the northern hemisphere
- Thomas Meyer: Ehrenpreis data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
