Ephemeral
Ephemeral (from ancient Greek ἐφήμερος ephēmeros , “only lasting for a day, transient”; from which German ephemeral , “volatile, transient”) are short-lived annual plants that form flowers and fruits within a very short vegetation period and then die off. They often only occur in years with an above-average amount of rain.
They include, for example, therophytes and some mosses .
Based on this, spring geophytes are called ephemeroids , which are characterized by a vegetation period that is just as short as ephemera, but are perennial species with underground storage organs. They behave ecologically similar and have almost the same development rhythm.
This is to be distinguished from ephemerophytes , plants from foreign flora that grow wild for a short time, but do not reproduce in the long term and therefore do not become neophytes .
See also
- Ephemeris , constantly changing planetary positions
Web links
Individual evidence
- ^ Wilhelm Gemoll : Greek-German school and hand dictionary . G. Freytag Verlag / Hölder-Pichler-Tempsky, Munich / Vienna 1965.
- ^ Heinrich Walter, Siegmar W. Breckle: Vegetation and climatic zones . Global ecology floor plan. 7th, completely revised and expanded edition, UTB M (medium format) 14, Ulmer, Stuttgart 1999, ISBN 978-3-8385-0014-0 .