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Plant population floristic zone

Formal name:  plant population floristic zone
Local identifier:  TOP266
Definition:  the feature of the plant population (EFO:plant population) characterizing the floristic zone or multiple zones at which the individuals may occur. Floristic zones are the characteristic sequences of plant assemblages from the poles to the equator due to climatic factors.
Formal Unit:  unitless (ordinal)

Comment:  If individuals of a population occur in different floristic zones, the whole range (amplitude) of the assigend floristic zones represent the floristic zone range of the respective species. The floristic zones can be ordered according to decreasing latitude from the North pole to the equator as follows: arctic, boreal, temperate, submeridional, meridional, subtropical, tropical and according to increasing latitude from the equator to the South pole as follows: austral, antarctic
Reference:  Jaeger, E. J.& Werner K. (2002): Rothmaler, Exkursionsflora von Deutschland. Gefaesspflanzen: Kritischer Band, Berlin, Spectrum, 948 pages