GALIUM aparinoides Forssk. [family RUBIACEAE], Fl. Aegypt.-Arab.: CV, No. 87, & 30 (1775); DC., Prodr. 4: 608 (1830); Schweinf., Arab.-Pflanzennamen: 114 (1912); Blatter, Fl. Arabica, in Rec. Bot. Survey India 8: 224 (1921); Schwartz, Fl. Trop. Arab., in Mitt. Inst. Bot. Hamburg 10: 264 (1939); E.P.A.: 1024 (1965); Verdc., in K.B. 28: 60 (1973); U.K.W.F.: 411 (1974). Type: Yemen, Hadie Mts., Mokhaja, Forsskål (C, lecto.!)
GALIUM hamatum A. Rich. [family RUBIACEAE], Tent. Fl. Abyss. 1: 345 (1847); K. Krause in N.B.G.B. 10: 611(1929). Types: Ethiopia, Wodjerat, Petit & Simien, Mt. Selki, Schimper 675 (both P, syn., K, isosyn.!)
GALIUM aparine (A. Rich.) Hook. f. var. hamatum [family RUBIACEAE], in J.L.S. 6: 11 (1861) & 7: 197 (1864); Hiern in F.T.A. 3: 246 (1877), excl. specim. cit.
GALIUM mollugo [family RUBIACEAE], [sensu K. Krause in N.B.G.B. 10: 611(1929), non L.]