Carex firma is a species of sedge that grows in the mountains of southern and central Europe.
| Carex firma | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Carex |
| Subgenus: | Carex subg. Carex |
| Section: | Carex sect. Frigidae |
| Species: | C. firma
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| Binomial name | |
| Carex firma | |
Description
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Carex firma forms thick cushions. Its leaves are up to 8 centimetres (3.1 in) long in normal conditions (up to 10 cm or 4 in in moist, sheltered localities), dark green and stiff.[1] The stems are up to 20 cm (7.9 in) tall (exceptionally 30 cm or 12 in), but always at least twice as long as the leaves.[1]
Ecology
editIn synecology, Carex firma is a characteristic part of the "Caricetum firmae" (also called "Firmetum"), which is an important community in the alpine zone over calcareous rock.[2]
Carex firma can survive temperatures as low as −50 °C (−58 °F).[3]
Taxonomy
editCarex firma was first described by Nicolaus Thomas Host in 1797, in his work Synopsis Plantarum in Austria provinciisque adjacentibus sponte crescentium.[4]
References
edit- ^ a b M. A. Fischer, W. Adler & K. Oswald (2005). "Segge, Riedgras / Carex (inkl. Vignea)". Exkursionsflora für Österreich, Liechtenstein und Südtirol (in German) (2nd ed.). Land Oberösterreich, Biologiezentrum des OÖ Landesmuseum, Linz. pp. 1093–1119. ISBN 3-85474-140-5.
- ^ M. A. Fischer, W. Adler & K. Oswald (2005). "Standorts- und Vegetationsökologie". Exkursionsflora für Österreich, Liechtenstein und Südtirol (in German) (2nd ed.). Land Oberösterreich, Biologiezentrum des OÖ Landesmuseum, Linz. pp. 127–135. ISBN 3-85474-140-5.
- ^ Ökke Atıcıa & Barbaros Nalbantoğlu (2003). "Antifreeze proteins in higher plants". Phytochemistry. 64 (7): 1187–1196. Bibcode:2003PChem..64.1187A. doi:10.1016/S0031-9422(03)00420-5. PMID 14599516.
- ^ Nicolaus Thomas Host (1797). "Carex". Synopsis Plantarum in Austria provinciisque adjacentibus sponte crescentium. Vienna, Austria: Christian Friedrich Wappler. pp. 502–512.
External links
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Media related to Carex firma at Wikimedia Commons
