Persistent ball

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Persistent ball
Perennial ball (Scleranthus perennis)

Perennial ball ( Scleranthus perennis )

Systematics
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Carnation family (Caryophyllaceae)
Subfamily : Alsinoideae
Genre : Ball herbs ( Scleranthus )
Type : Persistent ball
Scientific name
Scleranthus perennis
L.

The Enduring balls ( Scleranthus perennis ), also Perennial herb balls called, is a flowering plant in the family of the Pink family (Caryophyllaceae).

Appearance

Scleranthus perennis ( herbarium specimen )
Perennial ball ( Scleranthus perennis )
Perennial ball ( Scleranthus perennis )
inflorescence

The perennial herbaceous plant reaches a height of about 5 to 15 cm. It is lignified at the bottom and has dead leaves. The plant is gray-green in color. The opposite leaves are linear-sub-shaped.

The bracts are hardly longer than the flowers . These are usually curled together at the end. The bracts have a length of about 2.5 to 3 mm, are bluntly rounded, greenish and have a whitish skin edge up to 0.5 mm wide. They are only slightly longer than the 10 stamens . The tips of the tepals almost close together at the fruit time. The false fruit has a length of about 3.5 to 4.5 mm. It blooms from May to October.

The number of chromosomes is 2n = 22.

ecology

The perennial ball is a perennial, evergreen Chamaephyte .

It is the main host of the Polish scale insect, Porphyrophora polonica , whose larvae parasitize on its roots, and which, like the cactus scale insect, was important for some time as a supplier of a dye used to dye it red.

distribution

General distribution

Scleranthus perennis occurs from Europe across Asia Minor , the Caucasus , Armenia to Siberia . It is a Eurasian-suboceanic-sub-Mediterranean floral element.

In Austria the perennial tangle occurs only in the northern gneiss and granite areas. Otherwise he is rarely to be found. In Switzerland it is only widespread in southern Switzerland , otherwise rarely or completely absent.

Distribution in Germany

The persistent ball occurs in Germany scattered, especially in the plains and in the deeper areas. He's missing in the Alps.

Location requirements

The perennial ball grows in open pioneer lawns, on dunes and rock heads and on paths. It prefers nutrient-poor, moderately alkaline, low-lime, mostly acidic, low-humus sand or stone gravel soils. He is a Sedo-Scleranthetea class character.

Systematics

One can distinguish the following subspecies:

  • Scleranthus perennis subsp. atlanticus (Maire) Maire : It occurs in Morocco.
  • Scleranthus perennis subsp. burnatii (Briq.) PDSell (Syn .: Scleranthus burnatii Briq. ): It occurs in Spain, Sardinia and Corsica.
  • Scleranthus perennis subsp. dichotomus (Schur) Nyman : It occurs in Italy, Hungary, Slovakia, the Balkan Peninsula, Turkey and the Aegean Sea.
  • Scleranthus perennis subsp. marginatus (cast.) Nyman : It occurs in Italy, Sicily, on the Balkan Peninsula, in Romania, in the Aegean Sea and in Turkey.
  • Scleranthus perennis subsp. perennis : It is native to Europe and is a neophyte in North America.
  • Scleranthus perennis subsp. polycnemoides (Willk. & Costa) Font Quer (Syn .: Scleranthus polycnemoides Willk. & Costa ): It occurs in Spain and France.
  • Scleranthus perennis subsp. prostratus P.D.Sell : It occurs in Great Britain.
  • Scleranthus perennis subsp. vulcanicus (Strobl) Bég. : It occurs in Sicily.

literature

Individual evidence

  1. ↑ 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 386.
  2. ↑ a b c d e f g h i Karol Marhold, 2011: Caryophyllaceae : Datasheet Scleranthus In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
  3. ^ John W. Thieret, Richard K. Rabeler: Scleranthus Linnaeus. In: Flora of North America, vol. 5. [1] .

Web links

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