Shaggy milkweed

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Shaggy milkweed
Downy Spurge (Euphorbia villosa)

Downy Spurge ( Euphorbia villosa )

Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Spurge Family (Euphorbiaceae)
Genre : Spurge ( Euphorbia )
Type : Shaggy milkweed
Scientific name
Euphorbia villosa
Waldst. & Kit. ex Willd.

The shaggy spurge ( Euphorbia villosa ), also called downy spurge and woolly spurge , is a species of the genus Spurge ( Euphorbia ) in the family of the Spurge family (Euphorbiaceae). According to R. Govaerts, her correct name is Euphorbia illirica Lam.

description

Leaves and inflorescence

Vegetative characteristics

The shaggy milkweed is a perennial , herbaceous plant that reaches heights of 50 to 80 centimeters. It forms a Pleiokorm root . The base of the stem is covered with scale leaves. The leaves are narrowly elliptical, oblong, oblong-lanceolate or oblong-ovoid and measure 10 to 20 × 20 to 70 millimeters. The underside of the leaf is softly hairy. The leaf blade is often weakly serrated in the upper area.

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Generative characteristics

The flowering period extends from May to June. The bracts are bare. The capsule fruits are bare or covered with only a few hairs.

The number of chromosomes is 2n = 20.

Occurrence

The shaggy milkweed occurs in warm temperate Europe in wet herbaceous vegetation and marsh meadows. In addition to Europe, it is also found in Algeria.

Its only occurrence in Germany , already known in ancient flora, is in the Passau district of Hals . This occurrence is completely isolated, the next localities are in Austria and Silesia . In the Botanical Garden in Munich , the plant was propagated from cuttings on behalf of the government and relocated to some inaccessible places in the Ilz valley .

In Austria, the downy milkweed occurs rarely on damp and wet meadows and bushes in the colline altitude . The occurrences extend to the federal states of Vienna , Lower Austria , Burgenland , Styria and Carinthia and this species is considered endangered in Austria.

use

The shaggy milkweed is rarely used as an ornamental plant for perennial beds and pond edges. The 'Clarity' variety has a yellow autumn color.

Individual evidence

  1. ↑ a b Rafaël Govaerts (Ed.): Euphorbia villosa. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 21, 2020.
  2. ^ 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.  637 .
  3. ^ Manfred A. Fischer, Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol . 3rd, improved edition. Province of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 , p. 459 .

supporting documents

  • Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 . Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Excursion flora from Germany . Founded by Werner Rothmaler. tape 5 : Herbaceous ornamental and useful plants . Springer, Spektrum Akademischer Verlag, Berlin / Heidelberg 2008, ISBN 978-3-8274-0918-8 .
  • Helmut Fürsch, Anita Götthans; with the collaboration of Helmut Grosu: Die Ilz. A nature and hiking guide , 3rd edition, Morsak Verlag, Grafenau 1991, ISBN 3-87553-365-8 .
  • Willy A. Zahlheimer: Botany in Passau - The plant world and its research. In: The Bavarian Forest , anniversary issue 150 years of the Natural Science Association Passau , 21st year, issue 1 + 2, December 2008, pp. 23–41.

Web links

Commons : Shaggy Spurge ( Euphorbia villosa )  - Album with pictures, videos and audio files