Triangle Park in Oliver has a display of cacti – you will find it on the southwest corner near the highway.
“Like their spines, cactus flowers are variable. Typically the ovary is surrounded by material derived from stem or receptacle tissue, forming a structure called a pericarpel. Tissue derived from the petals and sepals continues the pericarpel, forming a composite tubeāthe whole may be called a floral tube, although strictly speaking only the part furthest from the base is floral in origin. The outside of the tubular structure often has areoles that produce wool and spines.”
A cactus – plural: cacti, cactuses, or cactus