Anchusa undulata subsp. hybrida (Ten.) Bég. in Nuovo Giorn. Bot. Ital., ser. 2, 17: 634. 1910
Anchusa undulata subsp. hybrida in Nuovo Giorn. Bot. Ital., ser. 2, 17: 634. 1910
is earlier homonym of Anchusa undulata subsp. hybrida, Fl. Portugal: 495. 1913
Anchusa undulata subsp. hybrida in Nuovo Giorn. Bot. Ital., ser. 2, 17: 634. 1910