Southern Alps leek
| Southern Alps leek | ||||||||||||
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Southern Alps leek ( Allium insubricum ) |
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| Allium insubricum | ||||||||||||
| Boiss. & Reut. |
The southern alpine leek ( Allium insubricum ) is a species of the genus leek ( Allium ).
features
The southern alpine leek is a perennial herbaceous plant that reaches heights of 15 to 30 cm. This geophyte forms onions as a persistence organ. The elongated onion is surrounded by a thin, paper-like skin that forms a cylindrical shell.
The stem is erect, light green and has two edges. In the lower third, it has three to four flat, up to 5 mm wide, linear, grass-like leaves with a blunt tip that surround it.
The always nodding, dold-like inflorescence consists of three to five flowers . The individual bract is pointed and persistent. The up to 2 cm long, hermaphrodite flowers are bell-shaped and threefold. In two circles are each three purple-pink bloom , wherein the inner bit are wider and dull. The six stamens are shorter than the inflorescence. The scar is three-lobed. The flowering period extends from July to August. There are fruit capsules formed.
The number of chromosomes is 2n = 14.
Occurrence
The southern alpine leek occurs in the Italian southern Alps between Lake Como and Lake Garda .
This species grows at altitudes of 800 to 2100 meters between rocks and scree, on scree slopes and on grassy slopes. The subsoil contains mostly calcareous rock.
literature
- Gunter Steinbach (Ed.): Alpine flowers . Mosaik Verlag GmbH, Munich 1996, ISBN 3-576-10558-1 (Steinbach's natural guide).
Individual evidence
Web links
- Allium insubricum inthe IUCN 2013 Red List of Threatened Species . Posted by: Branca, F. & Donnini, D, 2010. Retrieved September 20, 2013.