Crepis oliveriana (Kuntze) C.Jeffrey accepted as Crepis newii subsp. oliveriana (Kuntze) C.Jeffrey & Beentje (original description)
Lactuca ambacensis (Hiern) C.Jeffrey (original description)
Lactuca calophylla C.Jeffrey (original description)
Lactuca cichorioides (Hiern) C.Jeffrey (original description)
Lactuca cubanguensis (S.Moore) C.Jeffrey (original description)
Lactuca lasiorhiza (O.Hoffm.) C.Jeffrey (original description)
Lactuca setosa Stebbins ex C.Jeffrey (original description)
Lactuca songeensis C.Jeffrey (original description)
Lactuca tysonii (E.Phillips) C.Jeffrey (original description)
Lactuca ugandensis C.Jeffrey (original description)
Lactuca zambeziaca C.Jeffrey (original description)
Launaea cornuta (Hochst. ex Oliv. & Hiern) C.Jeffrey (original description)
Launaea crassifolia (Balf.f.) C.Jeffrey (original description)
Launaea nigricola C.Jeffrey accepted as Launaea petitiana (A.Rich.) N.Kilian (original description)
Launaea taraxacifolia (Willd.) Amin ex C.Jeffrey (original description)
Prenanthes somaliensis C.Jeffrey accepted as Erythroseris somalensis (R.E.Fr.) N.Kilian & Gemeinholzer (original description)
Sonchus camporum (R.E.Fr.) Boulos ex C.Jeffrey (original description)
Sonchus luxurians (R.E.Fr.) C.Jeffrey (original description)