Rock Speedwell
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Rock speedwell ( veronica fruticans ) |
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| Veronica fruticans | ||||||||||||
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The rock speedwell ( Veronica fruticans ) is a species of plant in the plantain family (Plantaginaceae).
description
The rock speedwell grows as a perennial herbaceous plant and reaches heights of 5 to 20 cm. The base of the stem is woody and has short hairs. The leaves are mostly sessile or have a very short petiole. With a length of 0.5 to 2 cm, the simple leaf blade is narrow to broadly oval and has entire or finely toothed margins.
The flowering period extends from June to July. Usually four to six flowers are arranged in loose, terminal, racemose inflorescences . The calyx and the flower stalks are hairy, but have no glands. The corolla is dark blue and has a white throat. The capsule fruit is broadly oval, flattened and barely edged. The style is almost as long as the fruit.
The number of chromosomes is 2n = 16.
Occurrence
The distribution area of the rock honorary award includes Europe and Greenland.
The rock speedwell occurs on stony slopes and in alpine pastures in the Alps. It thrives in subalpine and alpine zones up to altitudes of 2390 meters. It is a character species of the class of crevice and wall joint societies (Asplenietea trichomanes) and occurs mainly in societies of Androsacion vandellii, in the Black Forest especially in Woodsio-Asplenietum septentrionalis. In the Alps, it occurs primarily in societies of the Festucion variae association , but also in stony grass pastures ( Nardion ), in societies of the Sedo-Scleranthion association and in crooked sedge ( Caricion curvulae ).
literature
- Xaver Finkenzeller, Jürke Grau: Alpine flowers. Recognize and determine (= Steinbach's natural guide ). Mosaik, Munich 2002, ISBN 3-576-11482-3 .
- Manfred A. Fischer, Wolfgang Adler, Karl Oswald: Excursion flora for Austria, Liechtenstein and South Tyrol . 2nd, improved and enlarged edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2005, ISBN 3-85474-140-5 .
- Rock Speedwell. In: FloraWeb.de.
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. 839 .
- ↑ Veronica fruticans in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
Web links
- Rock Speedwell . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Veronica fruticans Jacq. 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 )
