| Biological classification: | 
            -  kingdom: Plantae
 - - phylum: Tracheophyta
 - -- class: Magnoliopsida
 - --- order: Sapindales
 - ---- family: Rutaceae
 - ----- species: Citrus limon
 
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        | Countries: | 
 - AU
 - Australia
 - DE
 - Germany
 - ES
 - Spain
 - FR
 - France
 - IT
 - Italy
 - NA
 - Namibia
 - NZ
 - New Zealand
 - PT
 - Portugal
 - SE
 - Sweden
 - TN
 - Tunisia
 - TR
 - Turkey
 - US
 - United States
 
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        | Ecoregions: | 
 - AA0405
 - North Island temperate forests
 - AA0408
 - Richmond temperate forests
 - AA0409
 - Southeast Australia temperate forests
 - AA0801
 - Cantebury-Otago tussock grasslands
 - AT0707
 - Guinean forest-savanna mosaic
 - AT1316
 - Namibian savanna woodlands
 - IM0119
 - Kayah-Karen montane rain forests
 - NA0409
 - Mississippi lowland forests
 - NA1201
 - California coastal sage and chaparral
 - PA0402
 - Atlantic mixed forests
 - PA0436
 - Sarmatic mixed forests
 - PA0445
 - Western European broadleaf forests
 - PA0501
 - Alps conifer and mixed forests
 - PA1201
 - Aegean and Western Turkey sclerophyllous and mixed forests
 - PA1207
 - Eastern Mediterranean conifer-sclerophyllous-broadleaf forests
 - PA1211
 - Italian sclerophyllous and semi-deciduous forests
 - PA1214
 - Mediterranean woodlands and forests
 - PA1215
 - Northeastern Spain and Southern France Mediterranean forests
 - PA1221
 - Southwest Iberian Mediterranean sclerophyllous and mixed forests
 - PA1222
 - Tyrrhenian-Adriatic Sclerophyllous and mixed forests
 
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            | Links: | 
            
                
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