Can caterpillars also flower? Plant "caterpillar" - white sandalwood

Cactaceae Sylvestris Sylvestri is a perennial succulent plant. The stem is thin cylindrical, clumpy, multi-branched, pale green in color, low and shallow ridges of 6-9, with dense spines on the edges, and about 15 white small radial short spines on one thorn seat, without thorns. On the thorn peduncle on the side of the stem, the flower buds are covered with brown filamentous hairs, the flower color is vermilion, funnel-shaped, there are more stamens, yellow, 1 pistil, white, flower diameter 3.5-5 cm. Flowering occurs in spring and summer. Looks like a caterpillar