Wedge-leaf saxifrage
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Wedge-leaf saxifrage ( Saxifraga cuneifolia ) |
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The Saxifraga Cuneifolia ( Saxifraga cuneifolia ), also called Keilblättriger saxifrage, is a native to the mountains of Europe plant species of the genus saxifrage ( Saxifraga ).
features
The wedge-leaf saxifrage is a perennial herbaceous plant ( Chamaephyte ) and reaches heights of 10 to 20 cm. It forms runners with lower leaves . The leaves are alternate in a basal rosette. They have no lime-secreting dimples, but a light-colored cartilage border. They are weakly fleshy to leathery. The basal leaves are obovate or rounded and narrowed like a wedge into the bare petiole. The leaf blade is entire in the lower third, before that usually sawed or notched with two to six teeth. The end tooth is blunt and often shorter than the lateral ones.
The loosely paniculate inflorescence is often downy covered with glandular hairs. The sepals are knocked down during flowering. The petals are white, they usually have yellow points at the base. They are 2.5 to 4 mm long and 1.5 to 2.5 times as long as the sepals. The pollination is done by insects. The flowering period extends from May to August.
The two-horned, many-seeded capsule fruit does not disintegrate when ripe.
The species has chromosome number 2n = 28.
Distribution and locations
The wedge-leaf saxifrage occurs from northwestern Spain (Sierra Meirama) over the Pyrenees and Cevennes as well as over the Alps and the northern Apennines to Croatia and Bosnia-Herzegovina . There are other occurrences in the Eastern and Southern Carpathians . In Austria it is common in the southern Alpine regions, otherwise scattered to rare, and occurs in Carinthia, Salzburg, East Tyrol, Vorarlberg and South Tyrol. The clan occurring in Austria is the subspecies subsp. robusta D.A. Webb .
The wedge-leaf saxifrage grows in forests, on shaded rocks and boulders. It occurs mainly in humid locations with humus and lime poor soils of the montane to alpine altitude range . It thrives in societies of the sub-associations Galio-Abietenion or Lonicero-Fagenion.
Systematics
There are two subspecies of the wedge-leaf saxifrage:
- Saxifraga cuneifolia subsp. cuneifolia ; it occurs only in France and Italy
- Saxifraga cuneifolia subsp. robusta D.A. Webb ; it occurs from the Pyrenees over the Alps to the former Yugoslavia and to the Carpathians.
literature
- Manfred A. Fischer , Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol. 3rd, improved edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 .
- Klaus Kaplan: Saxifragaceae family saxifrage plants. In: HEWeber (Ed.), Gustav Hegi , Illustrated Flora of Central Europe, Volume IV. Part 2A. 3rd edition, Blackwell Wissenschafts-Verlag, Berlin, 1994, ISBN 3-8263-3016-1
- Siegmund Seybold (Ed.): Schmeil-Fitschen interactive (CD-Rom), Quelle & Meyer, Wiebelsheim 2001/2002, ISBN 3-494-01327-6
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. 492 .
- ↑ Jaakko Jalas, Juha Suominen, Raino Lampinen, Arto Kurtto: Atlas florae europaeae . Volume 12 (Resedaceae to Platanaceae). Page 143, Helsinki 1999. ISBN 951-9108-12-2
Web links
- Wedge-leaf saxifrage. In: FloraWeb.de.
- Saxifraga cuneifolia L. In: Info Flora , the national data and information center for Swiss flora . Retrieved November 2, 2015.
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )