Teucrium flavum

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Teucrium flavum
Yellow germander (Teucrium flavum)

Yellow germander ( Teucrium flavum )

Systematics
Euasterids I
Order : Mint family (Lamiales)
Family : Mint family (Lamiaceae)
Subfamily : Ajugoideae
Genre : Germander ( Teucrium )
Type : Teucrium flavum
Scientific name
Teucrium flavum
L.

Teucrium flavum , also Yellow Gamander called, is a plant from the genus germander ( Teucrium ) in the family of Labiatae (Lamiaceae). The species is native to the Mediterranean region.

description

Teucrium flavum is an evergreen, dense dwarf shrub . The flower stems are up to 50 centimeters high. The occasionally slightly arched leaves are egg-shaped, around 3 centimeters long and 2 centimeters wide, the edge is notched to toothed. They are shiny dark green.

In the inflorescence the flowers are arranged in whorls . The calyx is 8 to 9 (rarely from 6) millimeters long, bristly to shaggy hairy and covered with glands. The individual calyx lobes are around two thirds as long as the tube, triangular and provided with a clear central rib . The crown is 14 to 18 millimeters long, yellowish or purple in color and shaggy hairy.

The number of chromosomes is 2n = 32.

Occurrence and locations

The species is widespread in the Mediterranean area and grows on rocky locations, but also in garigue , maquis , on roadsides and on fallow land .

Systematics

One can distinguish four subspecies:

  • Teucrium flavum subsp. flavum : It occurs from south-eastern France to the western Balkan peninsula and from Tunisia to Libya.
  • Teucrium flavum subsp. glaucum (Jord. & Fourr.) Ronniger : It occurs in Morocco, Algeria, Spain, on the Balearic Islands, Sardinia and Corsica, in Italy and on the Balkan Peninsula.
  • Teucrium flavum subsp. gymnocalyx Rech.f. : It occurs in southeastern Greece and on Crete.
  • Teucrium flavum subsp. hellenicum Rech.f. : It occurs from Greece to western Turkey.

proof

  1. a b c S.M. Haslam, PD Sell, PA Wolseley: A Flora of the Maltese Islands , Msida (Malta), 1977, p. 265
  2. a b c Hans Christian Weber, Bernd Kendzior: Flora of the Maltese Islands - A Field Guide , 2006, ISBN 3-8236-1478-9 , p. 178
  3. ^ Teucrium flavum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  4. a b c d e Rafaël Govaerts (Ed.): Teucrium flavum. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 20, 2018.

Web links

Commons : Teucrium flavum  - album with pictures, videos and audio files