Synonyms
Hypericum quadrangulum var. neapolitanum (Ten.) Ten.
Hypericum acutum subsp. tetrapterum (Fr.) Maire
Hypericum quadrangulum subsp. acutum (Moench) Rivas Goday & Borja
Hypericum quadrialatum Wahlb.
Hypericum tetrapterum var. genuinum Cout.
Hypericum acutum subvar. humile Rouy & Foucaud
Hypericum tetrapterum var. anagallidifolium Boiss.
Hypericum undulatum var. rotundifolium (Willk.) Pau
Hypericum quadrangulum subsp. tetrapterum (Fr.) Hook.f.
Hypericum quadrangulum var. tetrapterum (Fr.) Borg