''Calylophus'' is a genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the family

Onagraceae The Onagraceae are a family of flowering plants known as the willowherb family or evening primrose family. They include about 650 species of herbs, shrubs, and treesCalylophus berlandieri'' Spach (Berlandier's sundrops) *'' Calylophus hartwegii'' (Benth.) Raven (Hartweg's sundrops) *'' Calylophus lavandulifolius'' (Torr. & Gray) Raven (lavenderleaf eveningprimrose) *'' Calylophus serrulatus'' (Nutt.) Raven (halfshrub sundrop) *''

Calylophus toumeyi ''Calylophus'' is a genus of flowering plants in the family Onagraceae. Species include: *''Calylophus berlandieri'' Spach (Berlandier's sundrops) *''Oenothera hartwegii, Calylophus hartwegii'' (Benth.) Raven (Hartweg's sundrops) *'' ...

'' (Small) Towner (Toumey's sundrops) *'' Calylophus tubicula'' (Gray) Raven (Texas sundrops)

References

ITIS standard report page: ''Calyophus''
Onagraceae Onagraceae genera {{Myrtales-stub