Xeriscape Landscape Plants & Flowers
For The Arizona Desert Environment.
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Sonoran Catclaw Tree, Acaia occidentalis.

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Sonoran Catclaw Tree, Acaia occidentalis.
Sonoran Catclaw Tree Thorn."Tesota" Flowers Close Up.
Wonderful Sweet Smell.

Sonoran Catclaw Tree.
Acaia occidentalis, Bean Family ( fabaceae ), Sonoran Catclaw Tree. Also called: Tésota.

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A moderate sized deciduous tree with Acacia-like ball shaped, cream - white, colored flowers.

An excellent xeriscape garden plant.


Quick Notes:

Height: About 15 - 25 feet. Can reach 40 feet.

Flowers: Cream White puffballs, on a 2 to 3 inch long stalk, very aromatic, biggest bloom in spring and early summer, then sporadic.

Flowering Time: March to May.

Seed Pod: A slender, long pod, 2 - 5 inches long, dark brown, the pod sheath is constricted between the seeds. Flat elliptical seeds inside.

Stems/Trunks: White thorns of varying length; typically 1/4 to 1in long and white; thorns are most obvious on young trees, fewer found on mature specimens; young stem growth has reddish color, turning brown to gray-brown and becoming furrowed and scaly.

Leaves: The leaves are gray - green, alternate, semi-evergreen, bipinnately compound, 2 to 4 inches long, with 4 to 6 pairs of major leaflets and 8 to 12 pairs of minor leaflets about ,1 inches long and 1/2 inch wide. They are green to gray - green in color.

Found: Native to the Sonoran desert of Mexico. It is mainly native of Sonora, Mexico. And to northwestern Mexico in Sinaloa, Durango, and Chihuahua.

Hardiness:
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)
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

Elevation: Usually at 1,500 - 4,500 Feet. As a xeriscape, it will grow at 0 - 4,500 feet.

Habitat: Washes, flats and canyons below 4500'.

Miscellaneous: Flowering Photos Taken At Glendale, Arizona Xeriscape Botanical Garden. March 13, 2003.

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