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Ptilostemon greuteri is a species of flowering plant in the family Asteraceae. It is a shrub endemic to western Sicily.
Ptilostemon greuteri is a woody thistle which generally grows from 0.5 to 2 meters tall, and occasionally to 3.5 meters tall. It is the largest species and has the largest leaves in the genus. It is endemic to Monte Inici near Castellammare del Golfo in Trapani Province of northwestern Sicily. It was known from a single population in Cappellone Valley, where it grows in shrubland on rocky slopes, on cliffs, and at cliff bases from 200 to 500 metres elevation. A second population was discovered in 2022, growing in similar conditions. The species' area of occupancy (AOO) is less than 4 km2 and it has an estimated population of about 250 plants.
Text excerpted from the Wikipedia article Ptilostemon greuteri by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
