Ptilostemon chamaepeuce

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Ptilostemon chamaepeuce
Pygmy spruce thistle (Ptilostemon chamaepeuce)

Pygmy spruce thistle ( Ptilostemon chamaepeuce )

Systematics
Order : Astern-like (Asterales)
Family : Daisy family (Asteraceae)
Subfamily : Carduoideae
Tribe : Cynareae
Genre : Ivory Thistles ( Ptilostemon )
Type : Ptilostemon chamaepeuce
Scientific name
Ptilostemon chamaepeuce
( L. ) Less.

The bill spruce thistle ( Ptilostemon chamaepeuce ) is a species in the genus ivory thistles ( Ptilostemon ) in the family of Compositae (Asteraceae).

features

Flower head
Ptilostemon chamaepeuce

Ptilostemon chamaepeuce is a shrub or dwarf shrub that reaches heights of 30 to 100 centimeters. The leaves are narrowly linear and have no thorns. Those of the flowering shoots are pointed, as long as the rest of the leaves and neither slit nor broadened at the base.

The basket shell has a diameter of 13 to 20 (rarely up to 23) millimeters. In Ptilostemon chamaepeuce var. Chamaepeuce are the middle bracts pointed or tapered and indistinctly banded. In Ptilostemon chamaepeuce var. Elegans Greuter , on the other hand, the tips of almost all bracts are subpulate, 2 to 5 (rarely up to 7) millimeters long and turned back. The heads are arranged in a cluster of umbrellas .

The flowering period extends from April to June.

The number of chromosomes is 2n = 32.

Occurrence

Ptilostemon chamaepeuce occurs in the eastern Mediterranean . The distribution area extends from Albania and Greece via Crete and the Aegean Sea to Turkey, Syria, Lebanon, Israel and Cyprus. On Crete, the species grows at altitudes from 0 to 850 meters in limestone crevices, less often in walls and dry river beds. Sometimes it can also be found here in non-grazed, stony or rocky Phrygana and in open forests.

Systematics

One can distinguish between three varieties:

  • Ptilostemon chamaepeuce var. Chamaepeuce
  • Ptilostemon chamaepeuce var. Cyprius Greuter
  • Ptilostemon chamaepeuce var. Elegans Greuter

literature

  • Ralf Jahn, Peter Schönfelder: Excursion flora for Crete . With contributions by Alfred Mayer and Martin Scheuerer. Eugen Ulmer, Stuttgart (Hohenheim) 1995, ISBN 3-8001-3478-0 , p. 323 .

Individual evidence

  1. ↑ Peter Schönfelder , Ingrid Schönfelder: The new cosmos Mediterranean flora. Franckh Kosmos Verlag Stuttgart 2008. ISBN 978-3-440-10742-3 . P. 120.
  2. ^ Tropicos. [1]
  3. ↑ Werner Greuter (2006+): Compositae (pro parte majore). - In: W. Greuter & E. von Raab-Straube (eds.): Compositae. Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Datasheet Ptilostemon chamaepeuce In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.

Web links

Commons : Ptilostemon chamaepeuce  - collection of images, videos and audio files
  • Thomas Meyer, Michael Hassler: Mediterranean and Alpine flora. [2]