Willow-leaved milkweed

Willow-leaved milkweed
	Willow-leaved Spurge ( Euphorbia salicifolia )
Systematics
Order :	Malpighiales (Malpighiales)
Family :	Spurge Family (Euphorbiaceae)
Subfamily :	Euphorbioideae
Tribe :	Euphorbieae
Genre :	Spurge ( Euphorbia )
Type :	Willow-leaved milkweed
Scientific name
	Euphorbia salicifolia
	Host

The willow-leaved spurge ( Euphorbia salicifolia ), also called willow-leaf spurge , is a species of the genus spurge ( Euphorbia ) within the family of the spurge plants (Euphorbiaceae).

description

The willow-leaved spurge grows as a deciduous perennial herbaceous plant and reaches heights of 30 to 70 centimeters. The middle stem leaves are finely ciliated, lanceolate with a length of 5 to 7 centimeters and a width of 1 to 2.5 centimeters and their greatest width is below the center.

The flowering period is from June to July. The terminal shingled inflorescence is usually eight to ten-rayed, underneath are flowering or non-flowering side branches. The bracts are broader than long and prickly. The yellow envelope glands are sickle-shaped and later purple-red.

The capsule fruit is deeply furrowed, slightly wrinkled and glabrous.

The number of chromosomes is 2n = 36.

ecology

Willow-leaved milkweed is a hemicryptophyte .

Occurrence

In Central Europe , willow-leaved milkweed is only found in a few areas. In Germany only an isolated occurrence near Regensburg is known. It is rare in the Czech Republic . In Austria it is only part of the Pannonian flora : in Lower Austria and Burgenland it is rare. The distribution area extends from eastern Central Europe to Southeastern Europe and Ukraine.

The Willowleaf spurge thrives on calcareous , moderately dry, unconsolidated humic loam soils . It populates the edges of bushes and forests, but also grows on rain areas, on fences and field edges and is possibly a species of the Origanetalia order in Central Europe.

literature

Otto Schmeil , Jost Fitschen (greeting), Siegmund Seybold: The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants. 95th completely revised u. exp. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe. 2nd Edition. Volume 3: Evening primrose plants to reddish plants , Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X .

Individual evidence

↑ ^a ^b ^c ^d Willow-leaved milkweed. In: FloraWeb.de.
↑ ^a ^b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 638.
↑ Rafaël Govaerts (Ed.): Euphorbia salicifolia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 21, 2020.

Web links

Commons : Willow-leaved Spurge ( Euphorbia salicifolia ) - Collection of images, videos and audio files

Willow-leaved milkweed. In: FloraWeb.de.
Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
Pictures: [1] , [2]

[FloraWeb-1] Willow-leaved milkweed. In: FloraWeb.de.

[Oberdorfer2001-2] Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 638.

[WCSP-3] Rafaël Govaerts (Ed.): Euphorbia salicifolia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 21, 2020.