Tenaza Trees. Havardia pallens, Pea Family ( Fabaceae ) ( Leguminosae ) Tenaza: Also Called: Havardia brevifolia, Havardia nelsonii, Pithecellobium pallens, Apes - Earring, Huajillo, Guajilla, Mimosa bush. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Airy leaflets create light shade; when in full bloom, fluffy white flowers release a wonderful sweet fragrance. This plant is attractive to bees, butterflies and/or birds. Quick Notes: Height: Up To 10 - 20 feet tall and 15 feet wide. Trunk: 3 to 8 inches in diameter. Bark: Brown - gray, smooth; with paired, straight spines. Flowers: White, ball-shaped flowers, up to 1 inches 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: The USDA claims it is native to the USA (TX). Also native to Chihuahua, & Coahuila in Mexico. Elevation: Native at 1,000 to 3,000 feet Hardiness: 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) USDA Zone 11: above 4.5 �C (40 �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 or Arizona. Miscellaneous: Photos Taken At October 11, 2006. Boyce Thompson Arboretum, near Superior, Arizona.

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