Nasa is a genus of plants in the family Loasaceae. It contains over 100 known species, all of which are found in South America with the exception of two species endemic to Central America. They are common in submontane to montane environments.
Species include:
Nasa aequatoriana
Nasa amaluzensis
Nasa asplundii
Nasa auca
Nasa connectans
Nasa ferox
Nasa grandiflora
Nasa glabra
Nasa hornii
Nasa humboldtiana
Nasa jungifolia
Nasa katjae
Nasa loxensis
Nasa modesta
Nasa panamensis
Nasa peltata
Nasa profundilobata
Nasa rufipila
Nasa speciosa
Nasa tabularis