Asperula thessala Boiss. & Heldr. in Boissier, Diagn. Pl. Orient., ser. 2, 2: 111. 1856
Asperula thessala in Boissier, Diagn. Pl. Orient., ser. 2, 2: 111. 1856
is basionym for Asperula aristata subsp. thessala, Prodr. Fl. Penins. Balcan. 2: 452. 1930
Asperula thessala in Boissier, Diagn. Pl. Orient., ser. 2, 2: 111. 1856