Blue Water Speedwell

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Blue Water Speedwell
Blue water speedwell (Veronica anagallis-aquatica)

Blue water speedwell ( Veronica anagallis-aquatica )

Systematics
Euasterids I
Order : Mint family (Lamiales)
Family : Plantain family (Plantaginaceae)
Tribe : Veroniceae
Genre : Honorary award
Type : Blue Water Speedwell
Scientific name
Veronica anagallis aquatica
L.

The Blue Water Speedwell ( Veronica anagallis aquatica ), also known as Gauchheil Speedwell or Shore Speedwell , is a species of plant in the plantain family (Plantaginaceae).

description

Illustration from Flora Batava , Volume 2

Vegetative characteristics

The Blue Water Speedwell is a perennial , herbaceous plant that usually reaches heights of 10 to 60 centimeters. The stalk , which is indistinctly square in the upper part, grows ascending or is upright, inside rarely pithy and not overflowing with purple.

The lower leaves and sometimes those of the side branches are short-stalked, while the upper ones are partly encompassing half the stem. With a length of up to 12 centimeters and a width of 4 centimeters, the simple leaf blades are oblong-egg-shaped, shallowly serrated to toothed or with entire margins.

Generative characteristics

The flowering time is mainly in the months of June to October. In each case, many flowers are grouped together in numerous, fairly dense, glabrous, more rarely glandularly hairy racemose inflorescences . The flower stalks are bare and about two to three times as long as the calyx.

The hermaphrodite flower has a double flower envelope . The 4 to 7 millimeter large corolla is light blue to pale purple and has reddish veins.

The capsule fruit , which usually sits on the fruit stalks protruding at an acute angle, is roundish oval to almost circular and slightly longer than wide. The durable sepals are longer than the fruit. The fruit usually has a stylus that is more than 1.7 millimeters long .

The number of chromosomes is 2n = 36 or 18.

Habitus in the habitat
Blue water speedwell ( Veronica anagallis-aquatica )

Occurrence

Veronica anagallis-aquatica is widespread in Eurasia . There are occurrences in North, East and South Africa, in North and South America and in New Zealand. It is mostly common in Central Europe.

In Germany you can find the Blue Water Speedwell almost in the whole area; only in the west and north-west it is missing in some areas. In Austria and Switzerland, the Blue Water Prize is generally scattered.

Veronica anagallis-aquatica grows in reed beds, streams, ditches and springs. The Blue Water Speedwell thrives best on wet or flooded, mostly nutrient-rich, muddy soils . He loves salt and warmth. It occurs in Central Europe in societies of the associations Sparganio-Glycerion fluitantis or Phragmition australis.

ecology

In its submerged form (f. Submersa luck ) the Gauchheil honorary award also occurs in Ranunculetum fluitantis.

Systematics and taxonomy

The first publication of Veronica anagallis-aquatica took place in 1753 by Carl von Linné in his work Species Plantarum , Volume 1, page 12. Linné called her Veronica Anagallis and put a triangle behind it. At Linné, this triangle stands as a symbol for water and the species must therefore be correctly designated according to the code of the ICN nomenclature (Article 23) with the symbol written out and therefore called Veronica anagallis-aquatica . Synonyms for Veronica anagallis-aquatica L. are: Veronica espadamae Pau , Veronica maresii Sennen , Veronica minniana Merino , Veronica reyesana Pau & Merino .

By Veronica anagallis-aquatica There are several subspecies:

  • Veronica anagallis-aquatica L. subsp. anagallis aquatica
  • Veronica anagallis-aquatica subsp. anagallidiformis (Boreau) Jáv. & Soó (Syn .: Veronica anagallidiformis Boreau ): It occurs only in Bulgaria .
  • Veronica anagallis-aquatica subsp. divaricata Krösche : It occurs in Germany, the Czech Republic, Hungary, Israel and Jordan.
  • Veronica anagallis-aquatica subsp. lysimachioides (Boiss.) MAFish. (Syn .: Veronica lysimachioides Boiss. ): It occurs only in Armenia .
  • Veronica anagallis-aquatica subsp. michauxii (Lam.) Jelen. (Syn .: Veronica michauxii Lam. ): It occurs in Armenia and in the Asian part of Turkey .
  • Veronica anagallis-aquatica subsp. neilreichii (Čelak.) Dostál (Syn .: Veronica anagallis-aquatica var. neilreichii Čelak. )
  • Veronica anagallis-aquatica subsp. oxycarpa (Boiss.) Jelen. (Syn .: Veronica oxycarpa Boiss. ): It occurs in Armenia and in the Asian part of Turkey.

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 .
  • Francis W. Pennell: Rhodora. Journal of The New England Botanical Club . Ed .: New England Botanical Club. tape 23 , no. 265 , January 1921, Veronica anagallis-aquatica , p. 36 (English, biodiversitylibrary.org - this printed work is scanned online).

Individual evidence

  1. ↑ Veronica anagallis-aquatica L., Blauer Wasser-Ehrenpreis. In: FloraWeb.de.
  2. ↑ Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
  3. ↑ 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.  845 .
  4. ↑ Veronica anagallis-aquatica at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 11, 2016.
  5. ↑ Veronica anagallis-aquatica in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved June 18, 2012.
  6. ↑ a b c d e f g h i Karol Marhold: Plantaginaceae. 2011: data sheet Veronica anagallis-aquatica In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.

Web links

Commons : Blue Water Speedwell (Veronica anagallis-aquatica)  - Album with pictures, videos and audio files