Narrow endemic from Baja California Sur which resembles the much more common
Senita (Pachycereus schottii) except in the number of ribs (10-15 instead of 4-13) and certain floral features. Like its close relative, this cactus was formerly known as Lophocereus, can grow rather branchy and develops a pseudocephalium at maturity. The ends of mature stems have lots of long, flexible, brushlike spines, and this area is where pink, strictly nocturnal flowers and small red fruit appear. Pollinated by the Senita Moth. From the southern Magdalena Plain of BCS.
