Marrubium incanum

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Marrubium incanum
Marrubium incanum 1.jpg

Marrubium incanum

Systematics
Euasterids I
Order : Mint family (Lamiales)
Family : Mint family (Lamiaceae)
Subfamily : Lamioideae
Genre : Marrubium
Type : Marrubium incanum
Scientific name
Marrubium incanum
Desr.

Marrubium incanum is a vegetable art from the genus horehound ( Marrubium ) in the family of Labiatae (Lamiaceae). It is mainly located along the Adriatic Sea , but extends to France, Sicily and the Balkan Peninsula.

description

Marrubium incanum is a perennial stem hemicryptophyte with heights of 30 to 50 centimeters and only a weak odor. The stems are densely tomentose and usually have many short, upright, purely vegetative branches. The leaves on the main stem are oblong- egg-shaped and wedge-shaped at the base. The leaf margin is serrated and serrated. The surface has sunken veins and is densely tomentose, grayish-green on the upper side of the leaf and whitish on the underside of the leaf. The 2 centimeter long petiole is shorter than the 3 × 4 centimeter blade .

The inflorescence consists of spherical, dense, 20 to 25 flowered pseudo whorls , which are in the axilla of foliage-like bracts. The bracts are subpulate , the longest are almost as long as the calyx . The calyx tube is 6.5 to 7 millimeters long, ten-ribbed and tomentose with star hair. The five calyx teeth of equal length are sub-sub, 3 to 4 millimeters long and shorter than the crown. They are initially upright and later spread out in a star shape. They are sparsely covered with star hair. The crown is 13 to 14 millimeters long, colored milk white and hairy on the outside. The corolla tube tapers evenly towards the base. The upper lip is egg-shaped and divided to a third into two lanceolate or narrow triangular lobes. The side lobes of the lower lip are almost as large as the middle lobes.

The flowering period in Italy extends from May to August.

The number of chromosomes is 2n = 34.

Distribution and locations

The area of ​​the species has its center along the coast of the Adriatic Sea . On the Apennine peninsula, the deposits are concentrated on the Adriatic side from the Marches to the Gargano , while the much rarer deposits on the Tyrrhenian side range from Tuscany to Campania . At the northern end of the Adriatic, the deposits in Veneto and Friuli are connected to the deposits on the Balkan Peninsula , which extend along the coast from Istria to Montenegro and Albania , but also penetrate far inland to Serbia and Bulgaria . The species was also found in Sicily (last time: 1925) and Sardinia ; inconsistent occurrences are also found in France .

Marrubium incanum is a limestone plant that occurs in Italy at altitudes from 0 to 1200 meters. It settles on ruderal sites and on sheep pastures.

Individual evidence

  1. ↑ a b c d e f g h i j Sandro Pignatti (ed.): Flora d'Italia . Vol. 2. Edagricole, Bologna 2003, ISBN 88-506-2449-2 , pp. 449 (third unaltered reprint of the 1st edition from 1982).
  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. 137–138 (English, limited preview in Google Book Search).
  3. ^ A b Gustav Hegi: Illustrated flora of Central Europe. Pteridophyta, Spermatophyta . 2nd Edition. Volume V. Part 4: Angiospermae: Dicotyledones 3 (4) (Labiatae - Solanaceae) . Carl Hanser and Paul Parey, Munich and Berlin / Hamburg 1964, ISBN 3-489-78021-3 , pp. 2397 (unchanged reprint from 1927 with addendum).
  4. ↑ P. Goldblatt, DE Johnson (Ed.): Index to plant chromosome numbers 1990-1991. In: Monographs in systematic botany from the Missouri Botanical Garden. Volume 51, 1994, pp. I-ix, 1-267; Entry at Tropicos  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. .@1@ 2Template: Dead Link / www.tropicos.org  
  5. ^ Marrubium incanum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  6. ↑ August von Hayek: Prodromus Florae Peninsulae Balcanicae . Volume 2. In: Repertorium Specierum Novarum Regni Vegetabilis, supplement. Volume 30, No. 2, 1928-1931, p. 254.
  7. ^ Girolamo Giardina, Francesco Maria Raimondo, V. Spadaro: A catalog of plants growing in Sicily . In: Bocconea . tape 20 , 2007, ISBN 978-88-7915-022-4 , ISSN  1120-4060 , p. 304 .
  8. ↑ Rafaël Govaerts (ed.): Marrubium incanum. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved September 10, 2019.

Web links