Leafless fattening herb
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Petalless fattening herb ( Sagina apetala ) |
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The petalless fattening herb or eyelash fattening herb , Sagina apetala , belongs to the genus Sagina within the carnation family and the subfamily Alsinoideae .
description
The petalless fattening herb is a 3–10 cm high, annual , dark green plant. The leaves are abundant (some glandular) ciliate .
The flower stalks are nodding after flowering, then erect again, the white-edged sepals lie against the ripe, elongated fruit and are almost as long as the egg-shaped capsule, the 2 outer sepals are hood-shaped with a spiked tip. The petals-free fattening herb is often confused with the very similar upright fattening herb ( Sagina micropetala ), which is why it is in an aggregate Sagina apetala agg. is provided. Both differ mainly in the position of the sepals after flowering, which in Sagina micropetala, in contrast to Sagina apetala, protrude in a star shape.
The flowering period extends from May to September.
The number of chromosomes is 2n = 12.
Locations, distribution and endangerment in Central Europe
The petalless fattening herb needs moist, lime-poor, sandy loam soil that should be well supplied with nitrogen. In Central Europe it is a character type of the Thero-Airion association, but also occurs in societies of the Polygonion avicularis association or in the Centunculo-Anthoceretum of the Nanocyperion association.
It settles pavement joints, but also fresh fallow land in fields and wasteland. It occurs mainly in warmer areas with lime-poor rock, but is absent in large areas in the lowlands west of the Elbe and in the middle and higher altitudes of the low mountain ranges, the Alps and in the Alpine foothills . However, it rarely occurs everywhere at its locations.
Modern forms of cultivation as well as the increasing asphalting, especially in the small villages, have made it impossible for the petalless fattened herb to survive in some places; therefore it has locally disappeared.
literature
- Erich Oberdorfer : Plant-sociological excursion flora for Germany and the adjacent areas , 8th edition, 2001, Eugen Ulmer Verlag, ISBN 3-8001-3131-5 . Page 380.
- Rothmaler, Exkursionsflora von Deutschland Volume 4, Vascular Plants: Critical Volume, 10th Edition, 2005, Elsevier Verlag, ISBN 3-8274-1496-2
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
- Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe , Franckh-Kosmos-Verlag, 2nd revised edition 1994, 2000, Volume 2, ISBN 3 440-08048-X
Individual evidence
- ↑ Wolfgang Bomble: Sagina apetala ( petalless fattening herb) and S. micropetala sl (upright fattening herb iw S.) with comments on S. procumbens ( downward fattening herb). Yearbook of the Bochum Botanical Association. Vol. 6, 2015, pp. 247–253 ( PDF 1.4 MB)
- ↑ 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. 380 .
Web links
- Leafless fattening herb. In: FloraWeb.de.
- Distribution map for Germany. In: Floraweb .
- Sagina apetala Ard. s. st. In: Info Flora , the national data and information center for Swiss flora . Retrieved October 13, 2015.
- Distribution in the northern hemisphere according to Eric Hultén
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
Photos: