Close up of heart-shaped cactus, Arizona, United States

arizona armor beauty in nature cactus cautious close up color image day defense desert environment exotic full frame growth guarded heart shape nature nobody outdoors photography pricker prickly protection romance self defense self preservation southwest spiny square image succulent thorn united states vulnerability accessory america american americas az beauty careful close up color colour daytime defence development helplessness love natural north america outside plant rare sand security self protection square thorny us usa united states of america unusual us usa