Round leek

Round leek
	Round leek ( Allium rotundum )
Systematics
Order :	Asparagales (Asparagales)
Family :	Amaryllis family (Amaryllidaceae)
Subfamily :	Leek family (Allioideae)
Tribe :	Allieae
Genre :	Leek ( allium )
Type :	Round leek
Scientific name
	Allium rotundum
	L.

The round leek ( Allium rotundum ), even round-headed leek called, is a plant from the genus allium ( Allium ) in the subfamily of the leek plants (Allioideae).

description

The onion usually has small, dark red side onions.

Stem with flat foliage.

The inner stamens are widened at the base and have two filamentous appendages on the side of the tip carrying the dust bag.

Blossom: only the lateral thread-like appendages of the inner stamens protrude above the tepals.

The round leek is a perennial herbaceous plant that reaches heights of 30 to 80 cm. The onion is surrounded by several blackish and long-stalked onions. The leaves are narrowly lanceolate, grass-like and up to 10 mm wide.

The inflorescence is strikingly dense. The inflorescence has a characteristic, elongated shape due to the elongated flower stalks of the central flowers. The flowers are dark purple in color. The stamens are about as long as the bracts .

The chromosome number of the species is 2n = 16 or 48.

Occurrence and endangerment

The round leek is common in Central and Southeastern Europe, as well as in Southwest Asia. It occurs from Central Europe to Iran. It grows on disturbed semi-arid lawns, on embankments, along the edges of dry forests and bushes. It used to be found on the edges of fields. It prefers moderately dry to moderately fresh, base and nutrient-rich loess, loam and clay soil in warm locations. He likes to appear in societies of the order Polygono-Chenopodietalia.

The round leek is listed as endangered in the red list of fern and flowering plants in Germany.

literature

Siegmund Seybold : Flora of Germany and neighboring countries. A book for identifying vascular plants that grow wild and often cultivated . Founded by Otto Schmeil , Jost Fitschen . 93rd completely revised and expanded edition. Quelle & Meyer, Wiebelsheim 2006, ISBN 3-494-01413-2 .
Hans-Joachim Zündorf, Karl-Friedrich Günther, Heiko Korsch, Werner Westhus (eds.): Flora of Thuringia. The wild fern and flowering plants of Thuringia . Weissdorn, Jena 2006, ISBN 3-936055-09-2 .

Individual evidence

↑ ^a ^b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Page 129. Stuttgart, Verlag Eugen Ulmer, 2001. ISBN 3-8001-3131-5
↑ Rafaël Govaerts (Ed.): Allium rotundum - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on September 23, 2016.

Web links

Commons : Round Leek ( Allium rotundum ) - Collection of images, videos and audio files

Round leek. In: FloraWeb.de.
Round leek . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
Allium rotundum L. In: Info Flora , the national data and information center for Swiss flora .
Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )

[Oberdorfer2001-1] Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Page 129. Stuttgart, Verlag Eugen Ulmer, 2001. ISBN 3-8001-3131-5

[WCSP-2] Rafaël Govaerts (Ed.): Allium rotundum - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on September 23, 2016.