Senecio andrei Greenm. accepted as Pentacalia andrei (Greenm.) Cuatrec. (original description)
Senecio chachapoyensis Greenm. accepted as Pentacalia chachapoyensis (Greenm.) Cuatrec. (original description)
Senecio dictyophlebius Greenm. accepted as Pentacalia dictyophlebia (Greenm.) Cuatrec. (original description)
Senecio georgianus Greenm. (original description)
Senecio hillii Greenm. accepted as Pentacalia hillii (Greenm.) Cuatrec. (original description)
Senecio klugii Greenm. accepted as Pentacalia reflexa (Kunth) Cuatrec. (original description)
Senecio macbridei Greenm. accepted as Pentacalia reflexa (Kunth) Cuatrec. (original description)
Senecio millei Greenm. accepted as Pentacalia millei (Greenm.) Cuatrec. (original description)
Senecio pachypus Greenm. accepted as Pentacalia pachypus (Greenm.) Cuatrec. (original description)
Senecio pensilis Greenm. (original description)
Senecio pichinchensis Greenm. accepted as Pentacalia arbutifolia (Kunth) Cuatrec. (original description)
Senecio richii var. latior Greenm. (original description)
Senecio scaphiformis Greenm. accepted as Pentacalia scaphiformis (Greenm.) Cuatrec. (original description)
Senecio trichopus (Benth.) Greenm. accepted as Pentacalia trichopus (Benth.) Cuatrec. (original description)
Senecio tristis var. comberi Greenm. accepted as Senecio polyphyllus Kunze ex DC. (original description)
Senecio verticillatus var. trichophorus Greenm. accepted as Pentacalia verticillata (Klatt) Cuatrec. (original description)
Senecio werdermannii Greenm. (original description)