Calylophus

{{Short description|Genus of flowering plants}}

{{automatic taxobox

|image = Calylophus lavandulifolius 2.jpg

|image_caption = Calylophus lavandulifolius

|display_parents = 2

|taxon = Calylophus

|authority = Nutt.

|subdivision_ranks = Species

|subdivision = See text

}}

File:Calylophusdrum.jpg in the Water Conservation Garden at Cuyamaca College, El Cajon, California, USA]]

Calylophus is a genus of flowering plants in the family Onagraceae.

Species include:

• Calylophus berlandieri Spach (Berlandier's sundrops)
• Calylophus hartwegii (Benth.) Raven (Hartweg's sundrops)
• Calylophus lavandulifolius (Torr. & Gray) Raven (lavenderleaf evening primrose)
• Calylophus serrulatus (Nutt.) Raven (halfshrub sundrop)
• Calylophus toumeyi (Small) Towner (Toumey's sundrops)
• Calylophus tubicula (Gray) Raven (Texas sundrops)