Kashubian buttercup
| Kashubian buttercup | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Illustration, right: Kashubian buttercup |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Ranunculus cassubicus | ||||||||||||
| L. |
The Kashubian buttercup ( Ranunculus cassubicus ), also known as Wenden gold buttercup , is a species of the buttercup family (Ranunculaceae).
Distribution and location
The species is widespread in Scandinavia , Central and Eastern Europe to Western Siberia. It grows mainly in oak-hornbeam and quarry forests in shady or partially shaded locations on fresh, humus-rich or boggy soils.
description
The Kashubian buttercup is a robust, highly branched, perennial herbaceous plant that reaches a height of between 25 and 60 cm. Characteristic of the species are the up to 15 cm large, round, irregularly notched basal leaves with a kidney-shaped leaf base , the basal bay of which is V-shaped to almost closed. There can be one or two basal leaves, rarely three. The stem-like, sessile leaves, however, are broadly lanceolate and serrated.
The radial symmetry flower has a diameter of 2 to 3 cm. The egg-shaped petals are golden yellow. The flower base (torus) is almost always hairy. The flowering time is later than that of lesser celandine , but before that of most other buttercups.
Characteristic basal leaves
Systematics
Ranunculus cassubicus belongs to the species group of the gold buttercup ( Ranunculus auricomus agg.). Apomictic reproduction has favored the emergence of a large number of closely related, similar-looking clans, mostly with relatively small areas. These have not yet been adequately researched and only a small part has been described. From several groups of species, some of which are to be understood as series, one group can be relatively clearly separated and possibly as monophyletic : the subsection Cassubici G.H. Loos . Representatives of this group are also referred to in the literature as Ranunculus cassubicus agg. summarized. There is currently no final certainty in the system.
literature
- Lietuvos TSR Flora , Vol. III, Vilnius, 1961
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2000, ISBN 3-8001-3364-4 .
- Erich Oberdorfer : Plant-sociological excursion flora. Ulmer, Stuttgart, 1994, ISBN 3-8252-1828-7
