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In page Iris revoluta:

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It is listed as an endemic of Salento with Centaurea japygica (Lacaita) Brullo, Centaurea leucadea Lacaita, Centaurea nobilis (Groves) Brullo, Dianthus japigicus White & Brullo, Limonium japygicum (Groves) Pign. ,Ophrys tardans O. & E. Danesch, Plantago grovesii Brullo and Vicia giacominiana Segelberg[11]