Bald catnip

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Bald catnip
Nepeta nuda 2.jpg

Bald catnip ( Nepeta nuda )

Systematics
Family : Mint family (Lamiaceae)
Subfamily : Nepetoideae
Tribe : Mentheae
Sub tribus : Nepetinae
Genre : Catnip ( Nepeta )
Type : Bald catnip
Scientific name
Nepeta nuda
L.

The plant Kahle catnip ( Nepeta nuda ) belongs to the genus of Catnip ( Nepeta ) in the family Labiatae (Lamiaceae). It has a wide distribution area in Eurasia .

description

illustration

The bald catnip grows as a relatively large, perennial herbaceous plant , the stature heights from 50 to 120 cm. The square, hollow, mostly blue-violet overflowing, mostly completely bald or slightly downy hairy stem is branched. The internodes are 4 to 12 cm long. The opposite leaves are sessile, only the lower ones are very short stalked. With a length of 2 to 8 cm and a width of 1.5 to 3.5 cm, the leaf blade is oblong-egg-shaped to elliptical, heart-shaped at the base, the leaf edge is serrated all around and the upper and lower surface of the leaf is completely bare.

The flowering period extends from June to August. The inflorescences are stalked, loosely spike-like and carry the flowers in pseudo whorls. The hermaphrodite flowers are zygomorphic . The calyx is 4 to 6 mm long, tubular-bell-shaped, has short hairs and ends in five 1 to 2 mm long, awl teeth, all of which are pretty much the same length. The two-lipped corolla is light purple, almost white, 6 to 10 mm long; the flower tube is curved and greatly expanded in front. The upper lip has turned up sides; the lower lip has a broad, hollowed out, notched and mostly purple-spotted central lobe. Stamens and stylus protrude slightly from under the upper lip.

The Klaus fruit disintegrates into 2 mm long, ellipsoidal and warty-prickly partial fruits.

The chromosome numbers are 2n = 18 or 36.

Occurrence

The main distribution of the catnip is Southeast and East Europe and West Asia to Central Asia to Mongolia and Xinjiang , where it occurs in steppes . Its area extends westwards through the Danube, Elbe and Oder valleys to Poland, Austria and the Czech Republic to southern and central Germany, to the Rhone Valley, also to central Italy and the southern Alps , as well as to southern France and the Pyrenees . The bald catnip is also inconsistent and deported.

It settles on dry grassland , light deciduous and pine forests, especially on the colline and montane levels . It occurs in societies of the Festucion valesiacae or Onopordion acanthii associations.

Systematics

The first publication of Nepeta nuda was in 1753 by Carl von Linné in Species Plantarum , Volume 2, pp. 570-571. Synonyms for Nepeta nuda L. are Nepeta pannonica L. and Nepeta barbata Regel & C. Winkl.

One can distinguish the following subspecies:

  • Nepeta nuda L. subsp. nuda
  • Nepeta nuda subsp. albiflora (Boiss.) Gams : It occurs on the Balkan Peninsula, in Turkey and in the area of ​​Syria and Lebanon.
  • Nepeta nuda subsp. coerulea (Sol.) O. Bolòs & Vigo : It occurs in Portugal and Spain.
  • Nepeta nuda subsp. glandulifera Hub.-Mor. & PH Davis : It occurs in Turkey.
  • Nepeta nuda subsp. lydiae P. H. Davis : It occurs in Turkey.

literature

  • Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . Ulmer Verlag, Stuttgart. 8th edition 2001, ISBN 3-8001-3131-5
  • Helmut Gams : Dicotyledones. 3rd part Labiatae-Solanaceae . In: G. Hegi: Illustrated flora of Central Europe . Volume V, part 4. Carl Hanser publishing house, Munich. 1927 and 1964.
  • C. Turner: Nepeta L. In: TG Tutin et al .: Flora Europaea . Volume 3, pp. 158-160, Cambridge 1972.

Individual evidence

  1. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp.  798 .
  2. ^ A b Nepeta nuda in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
  3. ^ Nepeta nuda at Tropicos.org. Missouri Botanical Garden, St. Louis
  4. ↑ a b c d e data sheet Nepeta nuda In: World Checklist of Selected Plant Families (2010), copyright © The Board of Trustees of the Royal Botanic Gardens, Kew.

Web links

Commons : Bald Catnip ( Nepeta nuda )  - Collection of images, videos and audio files