Woven-Spine pineapple cactus

These cacti are short, elongated globular, and almost completely covered by spines. Areoles are each on distinctive tubercles that are arranged in rows. They bloom from February to mid-March, opening shortly afternoon and remaining open until dusk. They're-open each day for the next 3–4 days. There are often extrafloral nectaries, but they are hidden by the plant’s spines.