Dyssodia belenidium (DC.) Macloskie accepted as Thymophylla pentachaeta var. belenidium (DC.) Strother (original description)
Erigeron semiamplexicaulis var. scorzonerifolius (J.Rémy) Macloskie (original description)
Facelis brachyantha Macloskie (original description)
Gutierrezia brachyris var. patagonica (Speg.) Macloskie accepted as Gutierrezia spathulata (Phil.) Kurtz (original description)
Heterothalamus tenellus var. gracilior Macloskie accepted as Baccharis tenella Hook. & Arn. (original description)
Heterothalamus tenellus var. robustior Macloskie accepted as Baccharis tenella Hook. & Arn. (original description)
Nardophyllum nardophyllum (Kuntze) Macloskie accepted as Nardophyllum bryoides (Lam.) Cabrera (new combination reference)
Nardophyllum staehelinoides (DC.) Macloskie accepted as Nardophyllum lanatum (Meyen) Cabrera (new combination reference)
Nassauvia dusenii O.Hoffm. (original description)
Senecio alboffianus Macloskie (original description)
Senecio arnottii var. dentatus Macloskie (original description)
Senecio dusenii O.Hoffm. (original description)
Senecio microcephalus var. hookeri Macloskie (original description)
Senecio pinnatus var. glandulosus Macloskie (original description)
Senecio psammophilus var. dusenii Macloskie (original description)
Sonchus deserticola Macloskie (original description)