Q:Calylophus - 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 eveningprimrose)Calylophus serrulatus (Nutt.) Raven (halfshrub sundrop) Calylophus toumeyi (Small) Towner (Toumey's sundrops) Calylophus tubicula (Gray) Raven (Texas sundrops) Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Plant