Upright marigold

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Upright marigold
Upright marigold (Tagetes erecta)

Upright marigold ( Tagetes erecta )

Systematics
Order : Astern-like (Asterales)
Family : Daisy family (Asteraceae)
Subfamily : Asteroideae
Tribe : Tageteae
Genre : Tagetes
Type : Upright marigold
Scientific name
Tagetes erecta
L.

The erect marigold ( Tagetes erecta ) is a species of the sunflower family (Asteraceae).

features

The erect marigold is an annual plant that reaches heights of 45 to 75 (rarely 35 to 100) centimeters. The stem is angular and green. The leaf sections are lanceolate . The shell is 9 to 13 teeth and 18 to 22 millimeters long. The heads have a diameter of 5 to 9 (rarely up to 12) centimeters. There are more than 100 disc flowers . The ray-blooms are mostly a single color orange or yellow.

The flowering period extends from May to November.

The number of chromosomes is 2n = 24.

Upright marigold ( Tagetes erecta )

Occurrence

The upright marigold is found in Mexico, Guatemala and Peru in the Ucayali region. There are no known safe wild occurrences. The species is a neophyte found in Great Britain, Slovenia, Romania, Africa, Madagascar, India, Sri Lanka, the United States, Panama, northern South America, Cuba, Puerto Rico, New Zealand, and the South Pacific island of Niue .

Toxicity

Tagetes erecta hybrids, like Tagetes patula hybrids and other Tagetes species, are phototoxic in all parts of the plant. The main cause of this are thiophene compounds such as B. the alpha-terthienyl . These substances also mean that Tagetes speciescan causeairborne contact dermatitis .

use

The upright marigold is widely used as an ornamental plant for summer borders, window boxes and as a cut flower. In the Orient it is also used as a spice, perfume and medicinal plant. The flowers are also used to color poultry feed. The colored feed also causes the egg yolk and poultry meat to turn yellow. It has been in culture since 1561 at the latest. There are over 50 known varieties.

supporting documents

  • Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Excursion flora from Germany . Founded by Werner Rothmaler. tape 5 : Herbaceous ornamental and useful plants . Springer, Spektrum Akademischer Verlag, Berlin / Heidelberg 2008, ISBN 978-3-8274-0918-8 , pp. 603 .

Individual evidence

  1. ^ Tagetes erecta at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  2. ^ A b Tagetes in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved March 15, 2018.
  3. ^ Lutz Roth, Max Daunderer, Kurt Kormann: Toxic Plants - Plant Poisons. Occurrence, effect, therapy, allergic and phototoxic reactions. With a special section about poisonous animals. 6th edition. Nikol, Hamburg 2012, ISBN 978-3-86820-009-6 .
  4. ^ E. Prinz: "Dye Plants - Instructions for Dyeing, Use in Culture and Medicine" Verlag Schweizerbart, Stuttgart 2009, ISBN 978-3-510-65258-7 , p. 53.

Web links

Commons : Upright marigold  album with pictures, videos and audio files