Otopappus is a genus of flowering plants in the tribe Heliantheae within the family Asteraceae, primarily Mesoamerican but with one species from Jamaica.

Species

• Otopappus acuminatus S.Watson – Jalisco
• Otopappus brevipes B.L.Rob. – from Chiapas to Nicaragua
• Otopappus calarcanus S.Díaz – Colombia
• Otopappus curviflorus (R.Br.) Hemsl. – from Veracruz to Nicaragua
• Otopappus epaleaceus Hemsl. – from Puebla to Guatemala
• Otopappus glabratus (J.M.Coult.) S.F.Blake – Guatemala, Honduras, El Salvador
• Otopappus guatemalensis (Urb.) R.L.Hartm. & Stuessy – Guatemala, Belize, Yucatán
• Otopappus hirsutus (Sw.) R.L.Hartm. & Stuessy – Jamaica
• Otopappus imbricatus (Sch.Bip.) S.F.Blake – Puebla, Morelos, Michoacán, Guerrero
• Otopappus koelzii McVaugh – Michoacán, Colima, Jalisco
• Otopappus mexicanus (Rzed.) H.Rob. – Guerrero, Oaxaca
• Otopappus microcephalus S.F.Blake – Colima, Jalisco, Guerrero, Oaxaca
• Otopappus robustus Hemsl. – Veracruz
• Otopappus scaber S.F.Blake – Guatemala, Belize, Yucatán, Chiapas
• Otopappus syncephalus Donn.Sm. – Guatemala
• Otopappus tequilanus (A.Gray) B.L.Rob. – Sinaloa, Jalisco, Nayarit, Michoacán, Guerrero, Oaxaca
• Otopappus verbesinoides Benth. – from Oaxaca to Nicaragua

formerly included

Several species one included in Otopappus are now regarded as better suited to other genera: Lundellianthus Oblivia Verbesina

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