Twisted Acacia Leaves. Acacia schaffneri var. bravoensis.	Tenaza Prieto Acacia Leaf. Acacia schaffneri var. bravoensis.

Tenaza Prieto Acacia Trees. Acacia schaffneri var. bravoensis, Pea Family ( Fabaceae ) ( Leguminosae ) Tenaza Prieto Acacia: Also Called: Schaffner�s Wattle, Twisted Acacia, Huizache Chino, Medusa Acacia, Shaffner's Acacia. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Acacia schaffneri var. bravoensis (Twisted Acacia) is native to Mexico and south Texas. It has a branching structure with a twisting pattern within the tree branches. The leaves are very small, fine fern like with straight 1/2 to 1 inch reddish thorns. In spring it has yellow fragrant ball flowers along the branching structure. A young tree will need selective structural pruning until established. Twisted Acacia spreads thorny branches low to the ground. Birds and small mammals use Twisted Acacia as a canopy for nesting roosting and protection. Other common uses include xeriscape landscapeing. Quick Notes: Height: Up To 12 feet tall and 15 feet wide. Trunk: 3 to 8 inches in diameter. Bark: Brown - gray, smooth; with paired, straight spines. Flowers: Orange to yellow, ball-shaped flowers, up to 1/2 inch in diameter, very fragrant. Blooming Time: March - April. Seed Pod: 4 to 5 inch long straight, flat, velvety, brown seedpods. Leaves: Grayish green, fern-like, bipinnately compound leaves, 4 to 6 inches long, with 6 to 10 pairs of pinnae, 30 to 40 very small leaflets. Found: Mainly in the Chihuahuan desert. The USDA claims it is native to the USA (TX). In Texas it is mainly on the Edwards Plateau and the South Texas Plains. We have found that it is also native to southeastern New Mexico. Also native to Chihuahua, & Coahuila in Mexico; extending furthers southward as far as into the central Mexico state of Oaxaca. Elevation: Native at 1,000 to 3,000 feet. Said to grow into Zone 7a. Said not to do well in Zone 11. Hardiness: USDA Zone 7a: to -17.7 �C (0 �F) USDA Zone 7b: to -14.9 �C (5 �F) USDA Zone 8a: to -12.2 �C (10 �F) USDA Zone 8b: to -9.4 �C (15 �F) USDA Zone 9a: to -6.6 �C (20 �F) USDA Zone 9b: to -3.8 �C (25 �F) USDA Zone 10a: to -1.1 �C (30 �F) USDA Zone 10b: to 1.7 �C (35 �F) Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline) Sun Exposure: Full Sun Habitat: Rocky hillsides, alluvial plains, canyon slopes, and hillsides. Xeriscape ornamental in lower elevations in the Phoenix and Tucson areas of Arizona. Miscellaneous: Photos Taken At October 11, 2006. Boyce Thompson Arboretum, near Superior, Arizona.