Flushing

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Flushing
Levantine madder root (Rubia peregrina), flowers

Levantine madder root ( Rubia peregrina ), flowers

Systematics
Euasterids I
Order : Enzianartige (Gentianales)
Family : Red family (Rubiaceae)
Subfamily : Rubioideae
Tribe : Rubieae
Genre : Flushing
Scientific name
Rubia
L.

The red fever or madder ( Rubia ) are a genus of plants within the red family (Rubiaceae). The 60 to 80 species are widespread in the Old World in Africa and Eurasia . The roots of the species of the genus contain a red dye from which the so-called madder lakes are obtained.

description

Illustration of the common dye ( Rubia tinctorum )

Vegetative characteristics

The blushes are perennial herbaceous plants or subshrubs , many species are climbing plants . The stem axis is usually covered with rough or spiky hair.

The leaves are whorled and lanceolate or obovate with a sharp tip. The stipules of the opposite leaves are fused together and form so-called interpetiolar stipples.

Generative characteristics

The flowers stand together in terminal or lateral trugdoldigen inflorescences . The mostly relatively small, hermaphrodite or rarely unisexual flowers are radial symmetry and usually five-fold. The calyx is reduced, the four or five petals are fused into a tube in the lower area. The crown is heady or round. The ovary is underneath and consists of two fused carpels , the stigma is also in two parts.

There are beer-like schizocarps formed ellipsoidal in two, almost spherical or plano-convex, one-seeded drupes share.

Systematics and distribution

The genus Rubia was established in 1753 by Carl von Linné in Species Plantarum , 1, p. 109. Type species is Rubia tinctorum L.

The genus Rubia belongs to the subtribe Rubiinae from the tribe Rubieae in the subfamily Rubioideae in the family Rubiaceae .

The genus Rubia is widespread in the Old World in Africa and Eurasia , but no species occurs naturally in the New World and Australia. There are 39 species in China, 21 of them only there.

The internal system is controversially discussed. The genus Rubia is divided into sections, for example:

  • Section Campylanthera Pojark. , for example with Rubia florida
  • Section Oligoneura Pojark. , for example with Rubia cordifolia , Rubia horrida , Rubia oncotricha
Asiatic madder ( Rubia argyi )
Rubia chinensis f. chinensis
Indian madder ( Rubia cordifolia )
Ripe fruits of the Indian madder ( Rubia cordifolia )
Shrubby madder ( Rubia fruticosa )
Habit and leaves of the shrubby madder ( Rubia fruticosa )
Rubia horrida with fruit
Burdock madder ( Rubia peregrina )
True dye ( Rubia tinctorum )

The genus Rubia contains 60 to 80 species :

Species from the New World no longer belong to the genus Rubia , for example:

etymology

The common name Färberröte originated from the red dye in the roots. The scientific name Rubia already stood for the dye in Latin and is closely related to the Latin “ruber” (= red). The name can already be found in Vitruvius and Pliny the Elder . The root is "* rudhio-" (= red) in the Indo-European original language .

Individual evidence

  1. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq Rafaël Govaerts (Ed.): Rubia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 24, 2017.
  2. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap Tao Chen, Friedrich Ehrendorfer: Rubia , P. 305 - same text online as the printed work , In: Flora of China Editorial Committee: Wu Zheng-yi, Peter H. Raven & Deyuan Hong (Eds.): Flora of China , Volume 19 - Cucurbitaceae through Valerianaceae, with Annonaceae and Berberidaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, February 28, 2011, ISBN 978-1-935641-04-9 .
  3. ^ A b c d e Valerie L. Soza, Richard G. Olmstead: Molecular systematics of tribe Rubieae (Rubiaceae): Evolution of major clades, development of leaf-like whorls, and biogeography . In: Taxon . tape 59 , no. 3 , 2010, p. 755-771 ( PDF ).
  4. ^ Rubia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved October 24, 2017.
  5. Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 , p. 545 (reprint from 1996).

Web links

Commons : Reddening ( Rubia )  - Collection of images, videos, and audio files