Colorful forget-me-nots
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Colorful forget-me-nots ( Myosotis discolor ) |
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The Colorful Forget-me-not ( Myosotis discolor ), and Yellow Vergissmeinnicht mentioned, is a plant in the family of Borage Family (Boraginaceae).
description
Appearance and leaf
The colorful forget-me-not grows as an annual herbaceous plant and reaches heights of 10 to 30 centimeters. It is usually provided with several stems that protrude at the base and are hairy on top. The leaves are narrow, elliptical-spatulate with a pointed upper end. The hairs of the leaves have a straight tip. The lower leaves are narrowed like a stalk and arranged in a rosette.
Generative characteristics
The flowering period extends from April to June. The flowers sit in elongated coils . The hermaphroditic flowers are 1.5 to 2.5 millimeters in diameter and have a radial symmetry with a double flower envelope . The colorful forget-me-not is relatively easy to distinguish from other Myosotis species, as the flowers on a plant specimen are usually differently colored: initially they have a yellow border and a tube about 2 mm long, then they become reddish and finally blue-violet with a tube of double length. The flowering period is April to June.
The fruit stalks are almost horizontal or upright, at most half as long as the calyx and have no bracts .
The number of chromosomes is 2n = 72, less often 24.
Occurrence and endangerment
Myosotis discolor is distributed in Europe from Iceland to Spain, to Romania and the Ukraine, in North Africa, on the Canary Islands, Northern Italy and east to Croatia. In addition, the species occurs in North Africa, Turkey and Cyprus. It is a sub-Atlantic floral element . It is rare and endangered in Austria, and very rare in Switzerland. The colorful forget-me-not occurs scattered in northern and central Germany; to the east and south it decreases sharply and is rarely found. The colorful forget-me-not was rated in 1996 in the Red List of endangered plant species in Germany with category 3 = endangered.
The colorful forget-me-not grows in sandy lawns, in the edge of gorse bushes or pine stands, on paths and on the edges of fields. It prefers open, moderately dry, base-poor, moderately acidic, loose sand and stone gravel soils in low-lying areas with mild winter conditions. It is a Kalkflüchter. It is a character type of the association of the Kleinschmielenrasen (Thero-Airion), but also occurs in societies of the lambsweed (Arnoseridenion).
Systematics
Myosotis discolor was first published in 1797 by Christian Hendrik Persoon . A synonym for Myosotis discolor Pers. is Myosotis versicolor Sm.
From Myosotis discolor there are about four subspecies:
- Myosotis discolor Pers. subsp. discolor
- Myosotis discolor subsp. canariensis (Pit.) Gray : It occurs only in the Canary Islands and Madeira .
- Myosotis discolor subsp. dubia (Arrond.) Blaise (Syn .: Myosotis dubia Arrond .; Myosotis agnetis Sennen ): It occurs from the Azores and Morocco through Western Europe , Southern Europe , in Iceland , Norway , Denmark , Germany , Belgium , the Netherlands and France .
- Myosotis discolor subsp. rosmatina Valdés : It only occurs in Spain and was first described in 2008.
literature
- Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (= The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
- Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria . Ed .: Manfred A. Fischer. Eugen Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .
- Christian Heitz: School and excursion flora for Switzerland. Taking into account the border areas. Identification book for wild growing vascular plants . Founded by August Binz. 18th completely revised and expanded edition. Schwabe & Co., Basel 1986, ISBN 3-7965-0832-4 .
- Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 6th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1990, ISBN 3-8001-3454-3 .
- Konrad von Weihe (ed.): Illustrated flora. Germany and neighboring areas. Vascular cryptogams and flowering plants . Founded by August Garcke. 23rd edition. Paul Parey, Berlin / Hamburg 1972, ISBN 3-489-68034-0 .
Individual evidence
- ↑ a b c 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. 782-783 .
- ^ A b Myosotis in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 19, 2020.
- ↑ a b c d e Benito Valdés, 2011: Boraginaceae. : Data sheet Myosotis discolor In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Web links
- Myosotis discolor Pers., Color changing forget-me-nots. In: FloraWeb.de.
- Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
- Colorful forget-me-nots . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Myosotis discolor Pers. In: Info Flora , the national data and information center for Swiss flora . Retrieved February 7, 2016.
- Distribution in the northern hemisphere according to Eric Hultén
- Thomas Meyer: Forget-me-not data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia ).
Map with all linked sites: 