File:Larrea tridentata 3.jpg Larrea tridentata - Creosote Bush
Larrea divaricata Larrea tridentata
Common Name Creosote bush, Hediondilla, Gorvernadora, Guamis
Latin Name Larrea tridentata
Family / Origin Zygophyllaceae /
Sunset zone / USDA zone 10-13, 19 / 7-11
Type / Form Bush / Large
Native Habitat Below 5,000 feet in the Colorado, Sonoran, Chihuahuan, and Mojave Deserts
Soil Dry, decomposed granite, sand, clay loam low in organic content, well drained
Exposure Full sun
Water None to once per month
Height X Width Maximum 10 X 10 feet, usually 6 feet X 6 feet
Protective Mechanism Aromatic oils discourage some browsers, rarely may cause dermatitis itn some humans
Leaves Evergreen dark olive-green, aromatic
Flowers Yellow flowers in spring, evergreen, fragrance from leaves when humidity is high
Bark / Roots Initially smooth and gray, eventually becomes darker and splits into shallow fissures and flat plates
Maintenance None
Propagation Seed, difficult to transplant
Pests and Diseases None
Landscape uses Erosion control, rock garden, low maintenance, background, parkways, specimen
Garden Suitability Fragrant, Sonoran
Nature Value Soil stabilization, shelter for desert tortoise, seed eaten by desert animals and game birds
Native American Uses Medicinal, although it has toxic qualities
Comments Leaves contain phototoxins which inhibit the growth of other plants in its proximity.
Links  
    Images and data http://www.desert-tropicals.com/Plants/Zygophyllaceae/Larrea_tridentata.html
    Images and data http://www.cnr.vt.edu/dendro/dendrology/Syllabus2/factsheet.cfm?ID=522
    Images and data http://en.wikipedia.org/wiki/Larrea_tridentata
    Images and data http://ag.arizona.edu/pima/gardening/aridplants/Larrea_tridentata.html
    Images and data http://www.blueplanetbiomes.org/creosote_bush.htm
    Images and data http://www.fs.fed.us/database/feis/plants/shrub/lartri/all.html
    Images and data http://www2.for.nau.edu/azproject/Species/lar_tri0.html
    Images and data http://cals.arizona.edu/pima/gardening/aridplants/Larrea_tridentata.html
    Images and data http://www.fireflyforest.com/flowers/1384/larrea-tridentata-creosote-bush/
    Images and data http://www.wildflower.org/plants/result.php?id_plant=latr2
    Images and data http://www.mojavenp.org/larrea_tridentata_mojave_national_preserve.htm
    Images and data http://www.delange.org/Creosote/Creosote.htm
    Nursery, images and data http://www.laspilitas.com/plants/374.htm
    Distribution map http://www.swsbm.com/Maps/Larrea_tridentata.gif
    Distribution, Images, and data http://plants.usda.gov/java/profile?symbol=LATR2
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