Globeflowers

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Globeflowers
Lower globe flower (Trollius pumilus)

Lower globe flower ( Trollius pumilus )

Systematics
Eudicotyledons
Order : Buttercups (Ranunculales)
Family : Buttercup Family (Ranunculaceae)
Subfamily : Ranunculoideae
Tribe : Adonideae
Genre : Globeflowers
Scientific name
Trollius
L.

The globe flowers ( Trollius ) are a genus of plants in the buttercup family (Ranunculaceae). The approximately 30 species thrive in the temperate to arctic areas of the northern hemisphere in Eurasia and North America . The only species native to Europe is the globe flower ( Trollius europaeus ).

description

Illustration of the Chinese globe flower ( Trollius chinensis )
Flowers with many yellow stamens of Trollius albiflorus
Agglomeration from the beaked follicles of the globe flower ( Trollius europaeus )

Vegetative characteristics

The Trollius species are perennial herbaceous plants . All species are as good as bald.

There are undergraduate and exchange constant for most species distributed on the stem leaves . The leaf stalks are shorter, the higher the leaves are on the stem. In most species, the leaves are finger-shaped divided into five to seven obovate, three-lobed sections, or at least cut very deep finger-shaped.

Generative characteristics

In terminal inflorescences there are one to three flowers together, or individually on long pedicels. The hermaphroditic flowers are radial symmetry . There are five to nine sepals , rarely more , they are colored like a petal, mostly yellow, but in some species also whitish, orange or reddish, in one species also bluish-purple. They are usually broadly oval or rounded. In some species they are curved in such a way that the entire flower has a spherical shape. Most of them, however, are flat. The petals are colored similarly to the sepals, but much narrower, mostly linear to narrow oval, and nailed briefly at the base. There are nectaries just above the base of the petals .

The pelvic fruits consist of beaked follicle fruits.

Location requirements

The Trollius species occur in temperate to arctic climates . They prefer open, wet locations such as wet meadows and heavy, clayey soils.

Systematics and distribution

Asiatic globe flower ( Trollius asiaticus )

The genus Trollius was established by Carl von Linné . The genus Trollius belongs to the tribe Adonideae in the subfamily Ranunculoideae within the family Ranunculaceae .

The genus Trollius thrives in the temperate to arctic areas of the northern hemisphere in Eurasia and North America . There are 16 species in China, eight of them only there.

The genus Trollius contains about 30 species (selection):

literature

  • Li Liangqian, Michio Tamura: Trollius. In: Wu Zhengyi, Peter H. Raven, Deyuan Hong (Eds.): Flora of China . Volume 6: Caryophyllaceae through Lardizabalaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 2001, ISBN 1-930723-05-9 , pp. 137 (English, online - PDF file ).
  • Bruce D. Parfitt: Trollius. In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico . Volume 3: Magnoliophyta: Magnoliidae and Hamamelidae . Oxford University Press, New York / Oxford a. a. 1997, ISBN 0-19-511246-6 , pp. 189-190 (English, online ).

Individual evidence

  1. a b c d e f g h Bruce D. Parfitt: Trollius. In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico . Volume 3: Magnoliophyta: Magnoliidae and Hamamelidae . Oxford University Press, New York / Oxford a. a. 1997, ISBN 0-19-511246-6 , pp. 189-190 (English, online ).
  2. ^ W. Antkowiak, I. Maciejewska-Rutkowska, AM Jagodziński, D. Kayzer & M. Klimko: Variation of Seed Morphology of Trollius europaeus L. and Trollius altissimus Crantz (Ranunculaceae). In: Acta Societatis Botanicorum Poloniae , Volume 79, Number 2, 2010, pp. 117-123, ( digitized version ).
  3. ^ A b Trollius in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved June 7, 2014.
  4. a b c d e f g h i j k l m Li Liangqian, Michio Tamura: Trollius. In: Wu Zhengyi, Peter H. Raven, Deyuan Hong (Eds.): Flora of China . Volume 6: Caryophyllaceae through Lardizabalaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 2001, ISBN 1-930723-05-9 , pp. 137 (English, online - PDF file ).
  5. a b c d e f g Walter Erhardt , Erich Götz, Nils Bödeker, Siegmund Seybold: The great pikeperch. Encyclopedia of Plant Names. Volume 2. Types and varieties. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5406-7 .
  6. a b Jaakko Jalas, Juha Suominen (ed.): Atlas Florae Europaeae. Distribution of Vascular Plants in Europe. 8. Nymphaeaceae to Ranunculaceae. Akateeminen Kirjakauppa, The Committee for Mapping the Flora of Europe & Societas Biologica Fennica Vanamo, Helsinki 1989, ISBN 951-9108-07-6 , p. 39.
  7. Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Exkursionsflora von Deutschland . Founded by Werner Rothmaler. tape 5 : Herbaceous ornamental and useful plants . Springer, Spektrum Akademischer Verlag, Berlin / Heidelberg 2008, ISBN 978-3-8274-0918-8 .

Web links

Commons : Trollblumen ( Trollius )  - album with pictures, videos and audio files