12/01/2025
Sharing to impart knowledge about ideal trees for El Paso region. Now is the best time to transplant trees and shrubs and sow seeds of wildflowers.
Plant of the Week!
Common name: Catclaw Mimosa
Scientific name: Mimosa aculeaticarpa var. biuncifera
Native range: Central Texas west through New Mexico to Arizona, south through most of Mexico
Catclaw Mimosa is a thorny shrub that can reach between one and three meters in height and is characterized by its dense branches covered with spines that curve backwards like a cat’s claw. The spines are usually arranged in pairs, which gives it its variety name “biuncifera,” meaning “two hooks.”
Its leaves are bipinnate, with numerous small bright green or grayish-green leaflets, giving it a fine, feathery appearance. During spring and early summer, it produces small, globular flowers ranging in color from white to pink. The flowers are grouped in spherical heads that are very attractive to bees and other pollinators.
The fruit is a flattened, curved pod that is brown when ripe, with spiny margins and several seeds inside. This plant is often found on rocky slopes, in scrubland, and in grasslands. Its tendency to form spiny thickets provides excellent cover to birds and small mammals.