Polygala albida (Chodat) Paiva subsp. stanleyana [family POLYGALACEAE], in Fontqueria 50: 191, tab. 7/e; t. 12/b; t. 36/ c, d (1998); Gilbert in Fl. Eth. 2, 1: 184, fig. 24.3/1–4 (2000). Type: Angola, Massumba, Pogge 28 (B†, syn.); Angola, Pungo Andongo, Welwitsch 1015 (B†, pro parte, syn.); Angola, Pungo Andongo, Welwitsch 1017 (B†, syn.; BM!, neo.; LISU!, isoneo.)
Polygala stanleyana Chodat [family POLYGALACEAE], in Mém. Soc. Phys. Hist. Nat. Genève 31(2): 340, t. 27/39 (1893); Petit in F.C.B. 7: 250 (1958)
Polygala stanleyana Chodat var. angustifolia [family POLYGALACEAE], in Mém. Soc. Phys. Hist. Nat. Genève 31(2): 340 (1893), nom. illeg.
Polygala modesta Gürke [family POLYGALACEAE], in E.J. 19, Beibl. 47: 35 (1894), non Miq. (1845). Type: Tanzania, Muengue Mt, near Kwa Ngowe [localities not traced], Volkens 340 (B†, holo.; K!, lecto.; BM!, E!, isolecto.)
Polygala persicariifolia [family POLYGALACEAE], [ sensu De Wild. in Ann. Mus. Congo, sér. 5, 1: 51 (1903), pro parte, non DC. (1824)]