How a Green Roof Becomes Biodiverse: Vegetation Analysis on a Green Roof with no Maintenance in Rome (Italy)

Urban Farm DB summary

This study analyzed vegetation on an unmaintained green roof in Rome. Spontaneous colonization produced 62 species across 18 families, with Asteraceae (19 species, 31%) and Poaceae (10 species, 16%) most represented. Therophytes (annuals) dominated the life-form spectrum at 35 species (56%). Geographically, cosmopolitan species made up 25%, Mediterranean species 38%, and alien species 15%. Some originally planted species, such as Thymus, thrived through summer without irrigation.

Only numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.

• 62 count

  species count(unmaintained green roof)

  Biodiversity

  region

  Rome, Italy

• 56 %

  therophyte species share(unmaintained green roof)

  Biodiversity

  region

  Rome, Italy

• 18 count

  family count(unmaintained green roof)

  Biodiversity

  region

  Rome, Italy

• 31 %

  asteraceae species share(unmaintained green roof)

  Biodiversity

  region

  Rome, Italy

• 15 %

  alien species share(unmaintained green roof)

  Biodiversity

  region

  Rome, Italy

Direction of conclusions

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• BiodiversitySupportsWith caveats