Grindelia speciosa var. integrifolia Speg. accepted as Grindelia chiloensis (Cornel.) Cabrera (original description)
Hypochaeris leucantha (Speg.) Speg. accepted as Hypochaeris incana (Hook. & Arn.) Macloskie (original description)
Leucheria ibari var. glabrata Speg. accepted as Leucheria achillaeifolia Hook. & Arn. (original description)
Leucheria ibari var. sessiliflora Speg. (original description)
Leucheria ibarii var. glandulosa Speg. (original description)
Panargyrum abbreviatum var. subspinosa Speg. (original description)
Perezia patagonica Speg. accepted as Perezia recurvata Less. (original description)
Perezia patagonica var. intermedia Speg. accepted as Perezia recurvata Less. (original description)
Senecio linariifolius var. angustissima (Phil.) Speg. (original description)
Senecio miser var. tehuelches Speg. accepted as Senecio tehuelches (Speg.) Cabrera (original description)
Senecio trifurcatus var. pentadactyla Speg. (original description)
Senecio xanthoxylon var. araneosula Speg. (original description)
Solidago linearifolia var. brachypoda Speg. accepted as Solidago chilensis Meyen (original description)