Aspilia bipartita O.Hoffm. (original description)
Aspilia trichodesmoides O.Hoffm. (original description)
Aspilia welwitschii O.Hoffm. accepted as Aspilia natalensis (Sond.) Wild (original description)
Berkheya carlinopsis Welw. ex O.Hoffm. (original description)
Berkheya gracilis Welw. ex O.Hoffm. accepted as Hirpicium gracile (O.Hoffm.) Roessler (original description)
Bothriocline misera (Oliv. & Hiern) O.Hoffm. accepted as Erlangea misera (Oliv. & Hiern) S.Moore (original description)
Helichrysum steetzii (Vatke) O.Hoffm. accepted as Helichrysum kraussii Sch.Bip. (original description)
Inula welwitschii O.Hoffm. (original description)
Lactuca picridioides (Webb) Henriq. accepted as Launaea picridioides (Webb) Engl. (original description)
Melanthera albinervia O.Hoffm. accepted as Melanthera pungens var. albinervia (O.Hoffm.) Beentje (original description)
Oligothrix newtonii O.Hoffm. accepted as Psednotrichia newtonii (O.Hoffm.) Anderb. & P.O.Karis (original description)
Oligothrix xyridopsis O.Hoffm. accepted as Psednotrichia xyridopsis (O.Hoffm.) Anderb. & P.O.Karis (original description)
Senecio welwitschii O.Hoffm. accepted as Kleinia fulgens Hook.f. (original description)
Sphacophyllum candelabrum O.Hoffm. accepted as Anisopappus chinensis subsp. chinensis (L.) Hook. & Arn. (original description)
Sphacophyllum pinnatifidum O.Hoffm. accepted as Anisopappus grangeoides (Vatke & Höpfner ex Klatt) Merxm. (original description)
Sphacophyllum welwitschii O.Hoffm. accepted as Anisopappus chinensis var. buchwaldii (O.Hoffm.) S.Ortiz, Paiva & Rodr.Oubiña (original description)
Vernonia antunesii O.Hoffm. (original description)
Vernonia cardiolepis O.Hoffm. accepted as Baccharoides cardiolepis (O.Hoffm.) Isawumi, El-Ghazaly & B.Nord. (original description)
Vernonia chthonocephala O.Hoffm. (original description)
Vernonia daphnifolia O.Hoffm. (original description)
Vernonia dekindtii O.Hoffm. (original description)
Vernonia eremanthifolia O.Hoffm. accepted as Lampropappus eremanthifolia (O.Hoffm.) H.Rob. (original description)
Vernonia glaberrima Welw. ex O.Hoffm. accepted as Gymnanthemum glaberrimum (Welw. ex O.Hoffm.) H.Rob. (original description)
Vernonia lampropappa O.Hoffm. (original description)
Vernonia lappoides O.Hoffm. accepted as Vernoniastrum musofense (S.Moore) H.Rob. (original description)
Vernonia macrocyanus O.Hoffm. accepted as Linzia gerberiformis subsp. macrocyanus (O.Hoffm.) Isawumi (original description)
Vernonia praecox Welw. ex O.Hoffm. accepted as Vernonella praecox (Welw. ex O.Hoffm.) H.Rob. & Skvarla (original description)
Vernonia rhodophylla O.Hoffm. (original description)
Vernonia sclerophylla O.Hoffm. (original description)
Vernonia temnolepis O.Hoffm. (original description)
Vernonia ulophylla O.Hoffm. (original description)
Vernonia vaginata O.Hoffm. (original description)