Galium trifidum subsp. tinctorium (Linnaeus) H. Hara

Galium trifidum subsp. tinctorium (Linnaeus) H. Hara is a synonym sensu TROPICOS of:

Hydrogalium claytonii (Michaux) Kadereit & Schneeweiss, an accepted species name sensu Kadereit & Schneeweiss, 2026.