#arcualispinus

[phytophiliac]

Melocactus arcuatispinus cephalium. Some cacti will produce this woolly structure (called a cephalium) from which the flowers will later emerge. Plants in the genus Melocactus are particularly known for this trait.

#Melocactusarcuatispinus #Melocactus #arcualispinus #cephalium #cactus #CUgreenhouse #botany