Burser's saxifrage
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Burser's Saxifrage ( Saxifraga burseriana ) |
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Bursers saxifrage ( Saxifraga burseriana ) is a species in the genus saxifrage ( Saxifraga ) in the family Saxifragaceae (Saxifragaceae).
description
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Vegetative characteristics
Burser's saxifrage is a perennial herbaceous plant that reaches heights of 3 to 8 centimeters. It grows in lawn or upholstery . There are many non-flowering, densely leafed shoots like roof tiles. The light gray-green to gray-blue colored leaves are 6 to 9 millimeters long, linear-lanceolate , sharply triangular and have a narrow, cartilaginous edge and a fine spiked tip . They are lashed at the base with short, stiff hair.
Generative characteristics
The flowering period extends from March to June. The stem is erect, reddish, hairy glandular and has only one flower.
The hermaphroditic flowers are radial symmetry and five-fold with a double flower envelope . The sepals are only about half as long as the petals. The five sepals are glandular . The five white petals are 10 to 15 millimeters long and obovate with a rounded to slightly notched upper end and darker nerves.
The number of chromosomes is 2n = 26.
Occurrence
Burser's saxifrage occurs in the Limestone Alps , east of Oglio and Inn , exclusively on calcareous rock and rubble at altitudes of 1,600 to 2,500 meters, but sometimes also in valleys.
It is a character species of the Potentilletum caulescentis in the northern Alps and of the Potentilletum nitidae (association: Potentillion caulescentis) in the southeastern Alps.
Botanical history
Burser's saxifrage is named after the discoverer of this plant species, Joachim Burser , a doctor and botanist in Annaberg in Saxony. Burser traveled to part of the Duchy of Salzburg in 1620 and discovered the plant in the Radstädter Tauern. His plant collection later came to Uppsala and was evaluated by Carl von Linné . He also gave this species of plant its name and thus immortalized the discoverer.
literature
- Xaver Finkenzeller, Jürke Grau: Alpine flowers. Recognize and determine (= Steinbach's natural guide ). New edited edition. Mosaik, Munich 1996, ISBN 3-576-10558-1 .
Individual evidence
- ↑ Jaakko Jalas, Juha Suominen, Raino Lampinen, Arto Kurtto: Atlas florae europaeae. Volume 12 - Resedaceae to Platanaceae. Page 149, Helsinki 1999, ISBN 951-9108-12-2 .
- ^ 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. 489 .
- ^ Gustav Hegi : Illustrated flora of Central Europe. 2nd ed., Volume IV, Part 2, pages 176–177. Carl Hanser Publishing House, Munich 1961.
Web links
- Saxifraga burseriana L., Burser saxifrage. In: FloraWeb.de.
- Burser's saxifrage . 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: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia ).