Wire-haired laser herb
| Wire-haired laser herb | ||||||||||||
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Haller's laser herb ( Laserpitium halleri ) |
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| Laserpitium halleri | ||||||||||||
| Crantz |
The wire-haired laser herb ( Laserpitium halleri ), also called Haller's laser herb , is a type of plant belonging to the genus of the laser herbs ( Laserpitium ) within the umbelliferous family (Apiaceae).
description
Vegetative characteristics
The wire-haired laser herb is a perennial herbaceous plant that reaches heights of 15 to 60 centimeters. The above-ground parts of the plant are more or less hairy. The upright stem is round, finely grooved and simply or slightly branched.
The short-stalked basal leaves have a very large, up to 50 centimeters long, triangular leaf blade that is four to five pinnate and finally divided into five to seven narrow linear sections. The leaf blades of the stem leaves are less divided and sit on the leaf sheaths.
Generative characteristics
The flowering period extends from June to September. The hemispherical, double-gold inflorescence has 15 to 40 rays that are rough inside. The numerous bracts are clearly lanceolate, the edge is ciliate and the tip is often tridentate. The husk leaves are almost completely membranous.
The hermaphroditic flowers have a double flower envelope . The calyx teeth are sub-lanceolate. The white or initially reddish petals are twice as long as the sepals.
The fruit is yellow-brown and its wings are yellowish.
Occurrence
Laserpitium halleri occurs scattered in the Alps , the pre-Alps and on Corsica . It has occurrences in France, Italy, Switzerland and Austria.
The wire-haired laser herb thrives on soils at altitudes of 1000 to over 2500 meters . It mostly thrives on sunny, stony, dry, soil-free grasslands in the central Alps . It is a character species of the Festucion variae association.
Subspecies
One can distinguish between two subspecies:
- Laserpitium halleri Crantz subsp. halleri
- Laserpitium halleri subsp. cynapiifolium (DC.) P. Fourn. (Syn .: Ligusticum cynapiifolium DC. ): It occurs only in Corsica.
literature
- Xaver Finkenzeller, Jürke Grau: Alpine flowers (= Steinbach's natural guide . Volume 16 ). Mosaik, Munich 1985, ISBN 3-570-01349-9 , p. 158 .
Individual evidence
- ↑ a b c R. Hand (2011): Apiaceae. Laserpitium halleri In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Berlin 2011.
- ^ 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. 723 .
Web links
- Laserpitium halleri Crantz In: Info Flora , the national data and information center for Swiss flora . Retrieved January 10, 2016.
- Thomas Meyer: Laser herb data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia ).