''Stenocereus eruca'', commonly known as the creeping devil, is a member of the family

Cactaceae A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek ...

. It is one of the most distinctive cacti, a member of the relatively small genus ''

Stenocereus ''Stenocereus'' ( Gk. ''stenos'', narrow, L. ''cereus'', candle) is a genus of columnar or tree-like cacti from the Baja California Peninsula and other parts of Mexico, Arizona in the United States, Colombia, Costa Rica, Guatemala, Venezuela an ...

''. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the central

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

coast of

Baja California Sur Baja California Sur (; 'South Lower California'), officially the Free and Sovereign State of Baja California Sur ( es, Estado Libre y Soberano de Baja California Sur), is the least populated state and the 31st admitted state of the 32 federal ent ...

, and is found only on sandy soils, where it forms massive colonies. As with all cacti, creeping devil is succulent, and is reported to contain

mescaline Mescaline or mescalin (3,4,5-trimethoxyphenethylamine) is a naturally occurring psychedelic protoalkaloid of the substituted phenethylamine class, known for its hallucinogenic effects comparable to those of LSD and psilocybin. Biological sou ...

and

sterol Sterol is an organic compound with formula , whose molecule is derived from that of gonane by replacement of a hydrogen atom in position 3 by a hydroxyl group. It is therefore an alcohol of gonane. More generally, any compounds that contain the go ...

s. Growth patterns can be widely scattered as individual stems; in favorable localities they can form impenetrable patches of branching stems measuring several metres across. The creeping devil is columnar, with a very spiny stem which is creamy green in color, averaging 5 cm in diameter and 1.5-2 m long, with only the terminal end raised from the ground. A height of 20-30 cm is normal since this cactus is

recumbent Recumbent may refer to: * Recumbence, the act or state of lying down or leaning * Recumbent bicycle, a bicycle, tricycle or quadricycle which places the rider in a reclined or supine position * Recumbent effigy A tomb effigy, usually a ...

. The large, nocturnal

flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...

s are white, pink, or yellow; usually 10-14 cm long with a spiny ovary, and flowering sparingly in response to rain. The spiny

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

is 3-4 cm long with black seeds. Creeping devil lies on the ground and grows at one end while the other end slowly dies, with a succession of new roots developing on the underside of the stem. The growth rate is adapted to the moderate, moist marine environment of the Baja peninsula, and can achieve in excess of 60 cm per year, but when transplanted to a hot, arid environment the cacti can grow as little as 60 cm per decade. Over the course of many years, the entire cactus will slowly travel, with stems branching and taking root toward the growing tips, while older stem portions die and disintegrate. This traveling chain of growth gives rise to the name ''eruca'', which means "caterpillar", as well as the common name creeping devil. ''Stenocereus eruca'' is considered the "most extreme case of clonal propagation in the cactus family" (Gibson and Nobel, 1986). This means that due to isolation and scarcity of pollinating creatures, the plant is able to clone itself. This is done by pieces detaching from the major shoot as their bases die and rot. Other members of this genus that are found in the Baja Peninsula of California are ''

Stenocereus thurberi ''Stenocereus thurberi'', the organ pipe cactus, is a species of cactus native to Mexico and the United States. The species is found in rocky desert. Two subspecies are recognized based on their distribution and height. The Organ Pipe Cactus Nati ...

'' (Organ Pipe Cactus, Pitaya Dulce) and ''

Stenocereus gummosus ''Stenocereus gummosus'' is a flowering plant in the family Cactaceae A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophy ...

'' (Sour Pitaya, Pitaya Agria, Pitayha). While once thought to be threatened with extinction, further evidence showed it not to be so. Transplantation, while not recommended due to environmentally specific factors, can be successful with strict adherence to maintaining conditions which mirror the native environment.

References

* Clark-Tapia R, Mandujano MC, Valverde T, et al. (2005). How important is clonal recruitment for population maintenance in rare plant species? The case of the narrow endemic cactus, Stenocereus eruca, in Baja California, Mexico. ''Biol. Conserv.'' 124 (1): 123-13
Online
* Dimmitt, Mark A. (1998). ''Cactaceae (cactus family)''

* Faucon, Philippe (1998-2005)

* Gibson A. C. P. S. Nobel 1986 ''The cactus primer''. Harvard University Press, Cambridge, Massachusetts, USA * Lauri, Bob (2000)

Stenocereus Creeping Devils at Huntington Library

Stenocereus Creeping Devils at Huntington Library

{{Taxonbar

eruca ''Eruca'' is a genus of flowering plants in the family Brassicaceae, native to the Mediterranean region, which includes the leaf vegetable known as arugula or rocket. The number of species is disputed, with some authorities only accepting a sin ...

Flora of Baja California Sur