close up of ferocactus peninsulae, the dark green trunk is spherical.

pattern detail prickle trunk grow spike ferocactus prickles closeup cactaceae sharp spines desert garden tropical flower nature thorn green barrel cacti cactus ornamental botany plant background succulent dry prickly natural botanical flora stem fresh round orange mammillaria agave texture euphorbia botanic close peninsulae dark spherical 6-8 thorns large central hooked