Most mobile cactus

The aptly named creeping devil cactus (Stenocereus eruca) is notable for its ability to spread across the desert floor by as much as 60 centimetres (2 feet) per year. This recumbent species is endemic to the sandy soil and coastal dunes of the Magdalena Plains in the Mexican state of Baja California Sur.

The creeping devil gets its name as it effectively moves over time with the back end of the plant slowly perishing, providing nourishment to the roots which can be used to promote new growth that extends outwards, which then in turn lays down new roots and the process repeats. It grows far quicker under optimum cooler conditions, replicating those found in its native maritime range than it does in hotter, more arid regions found farther inland.

Some botanists have suggested that Stenocereus eruca also demonstrates clonal propagation to a greater degree than any other cactus, with fragments breaking off and rooting to form new plants (hence why creeping devil tends to form in patches or colonies). It's likely to have evolved this ability as a survival adaptation given the lack of pollinating animals in its habitat and sometimes great distances between colonies.