Notocactus graessneri (Cactus)

Also known as Parodia haselbergii subs. graessneri; it is a medium-sized solitary cactus of a slightly concave rounded shape at the apex. It is covered with long white/golden-yellow spines, that resemble a thick down. It blooms in spring, generating small flowers, that vary in color from greenish yellow to lime green.