Ivory man litter
|Ivory man litter|
Ivory man litter ( Eryngium giganteum )
The ivory man litter ( Eryngium giganteum ) (English: giant sea holly , Miss Willmott's ghost ) is a plant species from the umbelliferae family (Apiaceae). It is also called giant man litter and ivory thistle.
The ivory man litter is a short-lived, usually biennial plant with a wintering rosette of heart-shaped, rigid leaves. The umbel-like branched inflorescence with a strong stem reaches a height of 70-100 cm and a width of about 80 cm. The flowering period extends from June to August. The flowers are umbels condensed into cylindrical heads with piercing, silvery bracts . After flowering and fruit ripening, the plant usually dies, but retains its external structure into winter.
The number of chromosomes is 2n = 16.
The flowers of the ivory man litter are pollinated by many types of insects , such as beewolf and bee beetle . Similar to the flowers of the field man litter , they give off a lot of nectar and to a lesser extent pollen .
The ivory man litter is native from northeast Turkey over the Caucasus in Georgia , Armenia and Azerbaijan to northwest Iran , especially in mountainous areas on rocky grass slopes, gravel banks and semi-dry grasslands with calcareous fine soil . In Great Britain and Sweden it is considered naturalized, in Central Europe as an inconsistent neophyte . It grows well in full sun to partially shaded locations with permeable soil, also on the south-facing wooded edges , if the soil does not fall too dry in summer.
The ivory man litter is used as an ornamental plant in parks and gardens and is widely visited by insects ( bees , butterflies ). It is suitable as a cut flower and forms beautifully shaped dried flowers . The plant belongs to the short-lived species for sunny, warm places with moderately dry to fresh soils. The species is dependent on a loose stand with open, uncultivated soil in order to maintain itself in a plantation through self-sowing. Like other species of the genus Mannstreu , the plant forms impressive cylindrical inflorescences, which are surrounded at the base by a shell of hard bracts . In garden architecture, the plant is considered a valuable structural plant for the natural garden because of its tall, bizarre inflorescences and the silvery shimmering bracts . Their shiny metallic silver comes into its own in the foreground of dark garden areas. In the famous gravel garden of the British gardener Beth Chatto , ivory man-made litter grew next to the silver-green tufts of Mexican feather grass ( Nassella tenuissima ) and lemon-yellow chamomile .
As is typical for male litter , ivory male litter contains many phytochemicals such as terpenoids , triterpene saponins and flavonoids , which may be medically effective, but whose pharmacological activity (e.g. cytotoxicity ) has not yet been adequately investigated.
The English name Miss Willmott's ghost refers to the British gardener Ellen Ann Willmott (1858-1934). She was an influential member of the Royal Horticultural Society , but was considered eccentric and supposedly always carried seeds of the ivory man's litter with her to secretly sow in foreign gardens.
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- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
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- Richard Hansen , Friedrich Stahl: The perennials and their areas of life. 6th edition. Verlag Eugen Ulmer, Stuttgart (Hohenheim) 2016, ISBN 978-3-8001-8385-2 , p. 321.
- Eryngium giganteum in the Chromosome Counts Database: (ccdb.tau.ac.il)
- Hilke Steinecke: Wolves in the palm garden. In: Der Palmengarten 83/2, Palmengarten Frankfurt 2019,  , pp. 141–143.
- Distribution according to Euro + Med PlantBase: (ww2.bgbm.org)
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- Article about Ellen Willmott in the English Wikipedia:  .