Acanthophyllum is a genus of flowering plant in the family Caryophyllaceae with about 75 species, spread in the Irano-Turanian area.
Small, shrubby perennial plants with spiny leaves. Flowers white or pink, sessile in solitary or globose heads. Spiny bracts. Calyx cylindrical, with 5 teeth. Petals 5, entire or retuse. Stamens 20. Capsule ovoid, irregularly dehiscent from base. Reniform seeds.
The genus was described by Carl Anton von Meyer and published in Verzeichness der Pflanzen des Caspischen ...