spinose structure
modified shoots, leaves, roots, or extensions of cortice and epidermis
Sacra Spina
Christ's instrument of suffering
prickle
hard, rigid extensions of the cortex and epidermis, present in some plants (such as roses), without vascular tissue (unlike thorns/spines, which are modifications of stems or leaves, thus containing vascular tissue)
prickle
hard, rigid extensions of the cortex and epidermis, present in some plants (such as roses), without vascular tissue (unlike thorns/spines, which are modifications of stems or leaves, thus containing vascular tissue)