Wave cactus (Stenocactus crispatus)

Echinofossulocactus crispatus (syn. Stenocactus crispatus) is a globose to slightly cylindrical cactus endemic to Mexico, distinguished by its numerous, narrow, and strongly wavy ribs that give it a crisped or wrinkled appearance. It bears fine radial spines and slightly longer central spines, usually light to reddish-brown in color. In spring, it produces delicate white to pink flowers with a darker midstripe, creating a striking contrast with the spiny body. In my hometown, at the boundaries between oak forests and the Mezquital Valley, this species can be found on rocky slopes, where, anticipating the arrival of spring, it displays its first flowers, as well as the last blooms of the year.