Pyrenees autumn crocus
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Pyrenees autumn crocus ( Crocus nudiflorus ) in El Tarter in Andorra |
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The Pyrenean autumn crocus ( Crocus nudiflorus ) is a plant from the genus of crocus ( Crocus ).
description
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Vegetative characteristics
The Pyrenean autumn crocus is a spring green, perennial herbaceous plant that probably reaches heights of 8 to 17 centimeters. This geophyte forms tubers as persistent organs. Underground runners arise from the axillary buds of the tubers . The three to four leaves are 2 to 4 millimeters wide.
Generative characteristics
The hermaphrodite flowers are radial symmetry and threefold. The 2 × 3 bracts are mostly deep purple, rarely lilac purple. The perigone lobes are blunt, 30 to 60 millimeters long and 9 to 20 millimeters wide, and no nerves can be clearly seen on them.
The flowering period extends from September to October.
The number of chromosomes is 2n = 22.
Occurrence
The Pyrenees autumn crocus is found in northern Spain as well as southwest and central France . It grows in open, moist meadows at altitudes from 0 to 2000 meters. The Pyrenees autumn crocus is naturalized here and there in England.
use
The Pyrenees autumn crocus is rarely used as an ornamental plant for rock gardens and lawns.
supporting documents
Individual evidence
- ^ Tropicos. [1]
- ^ Ian Garrard, David Streeter: The Wild Flowers of the British Isles. Midsummer Books Ltd, London 1998, ISBN 1-900732-03-3 .
- ↑ Data sheet from the Botanical Society of Britain and Ireland .
- ^ Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler Exkursionsflora von Deutschland. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .
literature
- Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .
