Gristina, E. D., G. Barone, E. Bajona, and G. Gottschlich. “Rediscovery of Hieracium scorzonerifolium Subsp. divaricatum (Asteraceae), a Neglected Hawkweed Endemic to the Pollino National Park (Southern Italy)”. Phytotaxa, vol. 700, no. 3, May 2025, pp. 295-00, doi:10.11646/phytotaxa.700.3.6.