Marrubium cylleneum

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Marrubium cylleneum
Systematics
Euasterids I
Order : Mint family (Lamiales)
Family : Mint family (Lamiaceae)
Subfamily : Lamioideae
Genre : Marrubium
Type : Marrubium cylleneum
Scientific name
Marrubium cylleneum
Boiss. & Hero.

Marrubium cylleneum is a vegetable art from the genus horehound ( Marrubium ) in the family of Labiatae (Lamiaceae).

description

Marrubium cylleneum is a perennial , herbaceous plant and reaches heights of up to 30 centimeters. The hair of the plant consists of yellowish trichomes . The stems are hairy, woolly and tomentose, unbranched or have a few short, non-flowering branches. The leaves are broadly obverse to rounded. The leaf stalks are shorter than the leaf blades .

The inflorescence consists of spherical, multi-flowered pseudo whorls. The bracts are subpulate and shorter than the calyx tube . The calyx tube is 5 to 6.5 mm long and ten-ribbed. The calyx teeth are a quarter to a third as long as the calyx tube and are significantly less hairy than in the similar species Marrubium thessalum . The crown is yellowish in color. The corolla tube is suddenly constricted below the middle. The upper lip is elongated and divided up to a third or half into two spatula-shaped lobes. The side lobes of the lower lip are significantly smaller than the middle lobes.

The flowering period extends from June to August.

The number of chromosomes is 2n = 22.

Distribution and location

Marrubium cylleneum is endemic to the northern mountains of the Peloponnese . Data from southern Albania probably refer to Marrubium thessalum . The species colonizes rocky, grazed terrain and rubble on limestone at an altitude of 1200 to 2100 m.

Individual evidence

  1. ↑ a b c d e Claus Baden: Marrubium L. in: Arne Strid, Kit Tan (ed.): Mountain Flora of Greece. Volume Two . Edinburgh University Press, Edinburgh 1991, ISBN 0-7486-0207-0 , pp. 82–84 ( limited preview in Google Book search).
  2. ↑ a b J. Cullen: Marrubium L. in TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, Cambridge 1972, ISBN 0-521-08489-X , pp. 137 (English, limited preview in Google Book search).
  3. ↑ Rafaël Govaerts (Ed.): Marrubium cylleneum. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved September 10, 2019.

Web links

  • Pierre-Edmond Boissier: Diagnoses Plantarum Orientalium novarum, series secunda No. 4. Leipzig, Paris 1859, p. 51 (PDF). (Initial description)