Heteranthus Bonpl. ex Cass. accepted as Perezia Lag. (original description)
Heterolepis Cass. (original description)
Heterolepis decipiens Cass. accepted as Heterolepis aliena (L.f.) Druce (original description)
Heterotheca lamarckii Cass. accepted as Heterotheca subaxillaris (Lam.) Britton & Rusby (original description)
Hiortia Juss. (original description)
Hispidella barnardesii Cass. accepted as Hispidella hispanica barnad. ex Lam. (original description)
Homogyne alpina (L.) Cass. (original description)
Homogyne discolor (Jacq.) Cass. (original description)
Hostia rubra (L.) Cass. accepted as Crepis rubra L. (original description)