Shield dock

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Shield dock
Shield dock (Rumex scutatus)

Shield dock ( Rumex scutatus )

Systematics
Eudicotyledons
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Knotweed family (Polygonaceae)
Genre : Dock ( Rumex )
Type : Shield dock
Scientific name
Rumex scutatus
L.

The plate-sorrel ( Rumex scutatus ) is a plant type from the family of Polygonaceae (Polygonaceae).

description

The shield dock is a typical rubble wanderer and has a deeply anchored basic axis with stems similar to migrating instincts, which pierce each other upwards when it is flooded. The species is persistent and is about 10 to 40 cm high. The leaves are long-stalked, spear-shaped, triangular, rounded heart-shaped or almost fiddle-shaped-spear-shaped.

The inflorescence is a panicle, which is very loose and is composed of a few, upright branches. The flower stalks are thread-shaped and usually shorter than the valves. The outer tepals of the female flowers are herbaceous, barely 2 mm long and almost boat-shaped. They are pressed against the base of the blades at the fruiting time. The valves are mostly pale, 4.5–6 mm long and up to 5 mm wide and completely callous.

The name of the species refers to the shield-shaped leaves.

The number of chromosomes is 2n = 20.

Flowering time is from May to August.

Occurrence

The distribution area includes the mountains of Central, Southern and Eastern Europe as well as Southwest Asia. Coarse debris corridors (scree slopes) and stony, sunny slopes are preferred as locations. The shield dock thrives on moderately dry, base-rich, loose, agitated, open coarse and fine rubble soils. It is a character species of the class Thlaspietea rotundifolii, occurs less frequently in societies of the class Asplenietea and outside the Alps in Central Europe is a character species of Rumicetum scutati from the association Stipion calamagrostis. The plant is widespread up to the subalpine altitude. In the Allgäu Alps, it rises to an altitude of 2100 meters.

Others

The shield dock is rich in vitamin C and calcium oxalate . It used to be used officially ("Herba romana"). Cultivated varieties are also planted as "French or Roman spinach" ( Rumex scutatus var. Hortensis Lam. & DC. ) And are sometimes also naturalized on walls at lower altitudes. It is also used as a soup spice and salad.

literature

  • Xaver Finkenzeller: Alpine flowers. Recognize & determine (Steinbach's natural guide). Mosaik Verlag, Munich 2003, ISBN 3-576-11482-3
  • Manfred A. Fischer , Wolfgang Adler, Karl Oswald: Excursion flora for Austria, Liechtenstein and South Tyrol. 2nd, improved and enlarged edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2005, ISBN 3-85474-140-5 .
  • Karl Heinz Rechinger : Polygonaceae . In: Gustav Hegi : Illustrated Flora of Central Europe, Volume III, Part 1 . 2nd Edition. Carl Hanser, Munich 1957.

Individual evidence

  1. ↑ a b c 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.  332 .
  2. ^ Rumex in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved August 17, 2017.
  3. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , p. 446.

Web links

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