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Bursera microphylla
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Sapindales
Family: Burseraceae
Genus: Bursera
Species: B. microphylla
Binomial name
Bursera microphylla
Bursera microphylla range map 1.png
Natural range of Bursera microphylla

Elaphrium microphyllum (A. Gray) Rose[1]

Bursera microphylla belongs to the family Burseraceae in the order Sapindales. Bursera microphylla, known by the common name elephant tree in English or 'torote' in Spanish, is a tree in genus Bursera. It grows into a distinctive sculptural form, with a thickened, water-storing or caudiciform trunk. It is narrowly distributed in the United States in the Anza-Borrego Desert State Park region and the Santa Rosa Mountains in Southern California as well as parts of Southwestern Arizona.[2]


The distribution of Bursera microphylla is very similar to that of the Sonoran Desert overall.[3] Bursera microphylla is the most northerly member of the Burseraceae in North America and also perhaps the most xeromorphic species within the genus as it thrives in the extremely arid desert hills and mountains in northwest Sonora. This tree is native to northern Mexico, in the states of Baja California, Baja California Sur, Sinaloa, Sonora and Zacatecas;[1] and the Southwestern United States, in Southern California and Arizona; especially desert ecoregions.


Bursera microphylla is generally a small tree with a thickened trunk and relatively small branching structure in comparison to the trunk size; it is semi-succulent and stores water in the conductive and parenchymal tissues of the trunk, lower limbs, and wood.[4] Shreve (1964) classified the plant as a sarcocaulescent tree. The sarcocaulescent habit acts as a buffer against variation in environmental water balance (Turner et al., 1995). The leaves are alternate, without stipules, and are mostly once-pinnate or twice-pinnate but can be unifoliate or trifoliate in some species (Rzedowski and Kruse 1979). Bursera microphylla reaches up to 10 m (33 ft)[5] in height and its bark is light gray to white, with younger branches having a reddish color. The light foliage is made up of long, straight, flat, legume-like leaves which are composed of paired leaflets. It flowers in rounded yellow buds which open into small, star-shaped, white or cream flowers. The fruit is a drupe containing a yellow stone.[6]

The leaves are characterized as deciduous, including those on species that occur in tropical subhumid and humid forests (Becerra 2005). As a response to rain and warmer temperatures, B. hindsiana, B. laxiflora, and other more tropical species in Sonora begin to leaf out at any time of the year (Johnson 1992). Most species are drought deciduous, but B. microphylla keeps its leaves year-round, except under conditions of drought and cold weather. Most of the Sonoran Burseras flower in June and July, just before or just as the leaves are produced. This is probably in response to a lack of rainfall earlier in the summer before the monsoon season as this species is found in the region of Sonora lies at the western edge of an area, which regularly experiences summer monsoon storms. The fruits of species in the genus Bursera are small, drupe-like with a single-seed (Felger et al. 2001). In B. microphylla, the fruits develop rapidly and ripen gradually, a few at a time, and in some species many fruits remain on the trees as they begin to flower the following summer (Johnson 1992). Birds appear to be primarily responsible for seed dispersal in Bursera. Gray Vireos and Ash- throated Flycatchers feed heavily on the ripe fruits of B. microphylla in the Puerto Lobos region of Sonora, Mexico during the winter months (Johnson 1992). The winter range of the Gray Vireo in Sonora closely matches the distribution of Bursera microphylla (Bates 1992). Birds do not appear to eat the unripe fruit (Johnson 1992). Rodents sometimes gather fruits and seeds of Bursera. Ants have been observed carrying away seeds of B. microphylla (Johnson 1992). The exfoliating papery bark of many of the trivalvate species may serve to attract the attention of birds and other animals from a distance as it rustles in the breeze (Rzedowski and Kruse 1979).


  • The Cahuilla Indian people of the Colorado Desert region of California, according to legend, used the red sap of the elephant tree as a panacea.
  • Seri use the plant in many ways, including the wood for boxes.[7]
  • It is popular as a landscape plant in southwestern US in low warm desert where it does not freeze.[8]


See also[edit]


  1. ^ a b c "Bursera microphylla information from NPGS/GRIN". www.ars-grin.gov. Retrieved 2009-01-11. 
  2. ^ desertusa.com
  3. ^ Mooney HA, Emboden WA Jr (1968). "The relationship of terpene composition, morphology, and distribution of populations of Bursera microphylla (Burseraceae)". Brittonia 20: 44–51. doi:10.2307/2805460. 
  4. ^ Turner RM, Bowers JE, Burgess TL (2005). Sonoran Desert Plants: An Ecological Atlas. Tucson: University of Arizona Press. p. 501. ISBN 978-0816525195. 
  5. ^ Jepson Manual Treatment — Bursera microphylla
  6. ^ C. Michael Hogan. 2009
  7. ^ Fleger, R.S. & M.B. Moser. 1992. People of the Desert and Sea: Ethnobotany of the Seri Indians. University of Arizona Press.
  8. ^ Soule, J.A. 2013. Success with Succulents. Tierra del Sol Press


External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Bursera_microphylla — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
8 videos found

TOROTE 402 2014

Video elaborado por las alumnas Rosa y Jeanny del grupo 402 del Ceb 5/2 referente al árbol conocido comunmente como torote (Bursera microphylla)

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5 news items

Imagen de Zacatecas (Comunicado de prensa)

Imagen de Zacatecas (Comunicado de prensa)
Mon, 06 Jul 2015 04:07:14 -0700

Sin emabrgo, el verdadero motivo por el que sigue en pie y es parte importante de la historia de El Salvador, es que según se cuenta, fue en esos salones donde el general Matías Ramos cursó la primaria. El revolucionario llegóa ser secretario de ...

ASU News Now

ASU News Now
Thu, 23 Apr 2015 14:00:02 -0700

The Bursera Microphylla, or elephant tree, has a distinctive sculptural form, with a thickened, water-storing trunk. It is native to the Sonoran Desert. This particular example grows near Discovery Hall. Photographer: Charlie Leight/ASU News. There are ...
San Diego Reader
Wed, 05 Mar 2014 10:32:23 -0800

#The elephant tree (Bursera microphylla) is rarely found in the United States. It is found in the Gila Range of Arizona and, more commonly, in Baja California and Sonora, Mexico. For many years it was thought not to exist at all in the United States ...
San Diego Reader
Wed, 12 Mar 2014 11:33:45 -0700

Although rare in the United States, the elephant tree (Bursera microphylla) is common in Baja California. This is one of the largest concentrated “herds” of elephant trees in the Anza-Borrego area and is well worth the hike to view this unusual plant ...
San Diego Reader
Wed, 06 Mar 2013 09:41:08 -0800

The shady grove makes a nice rest stop. An added treat of going into Indian Gorge is visiting a side canyon called Torote, where elephant trees grow. The elephant tree, or torote (Bursera microphylla), one of the rare plants found in the park, is more ...

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