Bluish summer root

Bluish summer root
	Bluish summer root ( Orobanche coerulescens ) in Lower Austria
Systematics
	Asterids
	Euasterids I
Order :	Mint family (Lamiales)
Family :	Summer root family (Orobanchaceae)
Genre :	Sommerwurzen ( Orobanche )
Type :	Bluish summer root
Scientific name
	Orobanche coerulescens
	Stephan

The bluish summer root ( Orobanche coerulescens ) is a plant species from the genus of summer root ( Orobanche ) in the family of summer root plants (Orobanchaceae).

description

Blossom: the bract, calyx and crown are hairy, woolly. The crown is deep blue-violet.

Open flower: the corolla tube is constricted in the middle and the stamens are inserted there. The scar is whitish.

The bluish summer root is a parasitic plant, the stems of which are 10 to 40 cm high. At the base they are yellowish, swollen and balding, and on top they are hairy like a spider web. The leaves are 10 to 17 (rarely up to 25) mm long and lanceolate.

The inflorescences are up to 10 (rarely up to 18) cm high and 2.5 to 3.5 cm wide, usually densely built and hairy like a spider web. The bracts are about as long as the crown and lanceolate-pointed. The calyx is 8 to 13 mm long, the sepals are free and are more or less two-toothed. The crown is (rarely only 10 to) 14 to 23 mm long, hairy like a spider web, pale violet-blue in color, almost upright and slightly inflated at the base. It is constricted in the middle, the outer part protrudes. The lobes of the lower lip are almost the same and not ciliate. The stamens are hairless and set about 6 to 7 mm above the crown base. The anthers are mostly hairless. The scar is pale yellow.

The fruit is a capsule with a length of 8 to 10 mm.

The number of chromosomes is 2n = 38.

Occurrence and locations

The species is widespread in Eastern and Central Europe. Their distribution area extends from central Germany to northern Ukraine and the southern Urals , as well as western Kazakhstan in the south, to the Caucasus, Nepal, Siberia, China, Japan, Korea, Mongolia and Russia's Far East. It parasitizes on species of the genus Artemisia . It occurs in Central Europe in societies of the order Festucetalia valesiacae.

Name declaration

Coerulescens means "becoming blue" and refers to the corolla, as Karl Ludwig Willdenow indicates in his work "Species plantarum", Volume 3, page 349, 1800.

literature

Thomas Gaskell Tutin et al. (Ed.): Flora Europaea, Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, 1972. ISBN 978-0521084895 .

Individual evidence

↑ ^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. 865 .
^ Orobanche in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 27, 2018.

Web links

Commons : Orobanche coerulescens - collection of images, videos and audio files

Orobanche coerulescens Stephan, bluish summer root. In: FloraWeb.de.
Bluish summer root . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
Thomas Meyer: Sommerwurz data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )

[Oberdorfer2001-1] 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. 865 .

[GRIN-2] Orobanche in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 27, 2018.