Heart-leaved spherical flower
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Heart-leaved globular flower ( Globularia cordifolia ) |
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The heart-leaved globular flower ( Globularia cordifolia ) belongs to the plantain family (Plantaginaceae). It is probably a very young species that only emerged after the Ice Ages .
description
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The heart-leaved globular flower grows as a wintering green, perennial herbaceous plant . It forms a dense lawn (carpet-like network) with creeping branches, some of which are only lignified at the base. The creeping basic axis is branched and somewhat woody. Only the flower-bearing branches are upright and reach heights of up to 10 centimeters. The leaves, standing together in rosettes, are 4 to 7 mm long, lanceolate to oblong with a wedge-shaped to inverted heart-shaped blade base and an edged, rarely rounded and then with a central tooth, upper end.
The flowering period extends from June to July. The leafless flower stem has only one or two scales. The head-shaped inflorescences are hemispherical with a diameter of 1 to 1.2, rarely up to 2 centimeters. The hermaphrodite flowers are fivefold. The flowers are five-lobed. The blue-purple or light blue crown is two-lipped and about 7 mm long. The fruit is about 2 mm long.
The chromosome number of the species is 2n = 32, less often 24 or 40.
ecology
The heart-leaved spherical flower is an herbaceous Chamaephyte . The carpet-like mesh collects the humus trickling down from the rock like a trap .
Occurrence
The distribution area includes the mountains in Central and Southern Europe from the Pyrenees to the Balkans , in the Swiss Jura and the Limestone Alps up to altitudes of about 2000 m above sea level. In Austria the heart-leaved ball flower is common in all federal states. In Switzerland, the heart-leaved spherical flower occurs in the Alps, the Central Plateau and the Jura .
The preferred location is lawns interspersed with rocks, crevices, humus blankets over rocks on limestone soils . It is a Seslerietalia-order character, but also occurs in societies of the Mesobromion, Potentillion caulescentis or Erico-Pinion.
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 .
Individual evidence
- ↑ a b c d e f Globularia cordifolia L., Herzblättrige Kugelblume. In: FloraWeb.de.
- ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Stuttgart, Verlag Eugen Ulmer, 2001. Page 871. ISBN 3-8001-3131-5
Web links
- Heart-leaved spherical flower . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Globularia cordifolia L. In: Info Flora , the national data and information center for Swiss flora . Retrieved March 27, 2016.
- Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
- Thomas Meyer: Kugelblume data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )