Smooth crocus
| Smooth crocus | ||||||||||||
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Crocus laevigatus 'Fontenayi' |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Crocus laevigatus | ||||||||||||
| Bory & Chaub. |
The Smooth crocus ( Crocus laevigatus ) is a plant from the genus of crocus ( Crocus ).
features
The smooth crocus is a perennial tuber geophyte that reaches heights of 3 to 11 centimeters. The tuberous shell is smooth, leathery, firm and breaks open at the base into pointed, triangular teeth. The 3 to 4 leaves are 1 to 2.5 millimeters wide. The 1 to 3 (rarely 4) flowers are fragrant. The perigone lobes measure 13 to 30 × 4 to 18 millimeters, are white or purple in color and their underside is sometimes silvery, brownish or yellowish. The outer perigone lobes have 1 (rarely up to 3) purple-violet stripes. The throat is yellow. The anthers are white. The stamens are white and glabrous or papillary only at the base. The pollen is white.
The flowering period extends from October to March (rarely until April).
The number of chromosomes is 2n = 26.
Occurrence
The smooth crocus is found in the Aegean Sea . In Crete , the species grows in open, stony or rocky Phrygana, on rocks, on clay surfaces and in open pine forests at altitudes of 0 to 1400 (rarely up to 2350) meters. It is mostly found on lime.
use
The smooth crocus is rarely used as an ornamental plant in rock gardens. It has been in culture since 1832 at the latest. These cultivated plants go back to early flowering forms from the Cyclades. The 'Fontenayi' variety has purple flowers that are clearly streaked on the outside.
literature
- Ralf Jahn, Peter Schönfelder: Excursion flora for Crete . With contributions by Alfred Mayer and Martin Scheuerer. Eugen Ulmer, Stuttgart (Hohenheim) 1995, ISBN 3-8001-3478-0 , p. 367 .
- Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Excursion flora from Germany . Founded by Werner Rothmaler. tape 5 : Herbaceous ornamental and useful plants . Springer, Spektrum Akademischer Verlag, Berlin / Heidelberg 2008, ISBN 978-3-8274-0918-8 , pp. 718 .
Individual evidence
- ↑ Crocus laevigatus , chromosome number at Tropicos.org. Missouri Botanical Garden, St. Louis