closeup of the top of a barrel cactus, ferocactus.

ferocactus closeup barrel cactus yellow spines growth thorns fuzzy plant green white brown thorn round arrid harsh life top barrel cactus brown closeup ferocactus green growth harsh life plant round top white yellow background beautiful beauty blossom botanical botany color colorful desert detail dry flora floral flower garden leaf macro natural nature outdoor prickly summer tropical wild spines arid