Senegalia greggii
A long-lived, drought-tolerant desert legume shrub or small tree with spiny, twice-pinnate gray-green leaves, fragrant creamy-yellow flower spikes, and contorted flat pods, native to the southwestern United States and northern Mexico.
Common Names
Catclaw Acacia, Catclaw, Devil's Claw, Wait-a-Minute Bush, Texas Catclaw, Texas Catclaw Acacia, Long-flowered Catclaw, Longflower Catclaw, Long-flowered Catclaw Acacia, Longflower Catclaw Acacia, Uña De Gato, Gregg Catclaw, Gregg Catclaw Acacia, Gregg Acacia, Gregg's Catclaw, Gregg's Catclaw Acacia, Gregg's Acacia
Summary
Desert-dwelling, deciduous shrub or small tree native to the southwestern United States and northern Mexico, it forms a dense, thorny thicket up to about 10–15 ft tall and 15–20 ft wide. It features curved spines and bipinnate gray-green leaves, with fragrant cream-colored flowers arranged in dense spikes that attract bees; following flowering are long, twisted pods. A deep-rooted, highly drought-tolerant plant, it thrives in full sun on dry, well-drained soils such as rocky or sandy sites in washes, canyons, and rocky hillsides.
Propagation is by seed, with scarification or soaking sometimes used to improve germination; transplanting is challenging due to a deep taproot. In landscapes, it serves as an ornamental hedge, barrier, or desert accent and is valued for wildlife habitat, nectar for insects, and pollinator support. Wood is used for tools and fuel; immature pods are edible after boiling to remove tannins, while seeds and mature pods are inedible. It tolerates USDA hardiness zones 7–10 and requires little to no irrigation once established.
Lifecycle
Perennial
Height
10-15 ft
Spread
15-20 feet
Hardiness Zones
Zones 7-10
Sunlight Requirements
Ideally full sun.
Soil Type
Well-drained soil, suitable for sandy, loamy, and clay soils
Soil Drainage
Well-drained soil
Soil pH
Tolerates all pH levels
Bloom Color
Cream to yellow
Bloom Time
Spring
Foliage Color
Green to gray-green
Fall Foliage Color
grayish-green
Leaf Lifecycle
Deciduous
Growth Rate
Moderate
Seasons of Interest
Spring, Summer, Fall
Propagation Methods
Seeds, Cuttings, Root crown sprouts, Planting seedlings
Attracts Wildlife
Bees, hummingbirds, butterflies, other pollinators, birds
Taxonomy
- Taxonomic Rank
- Species
- Author
- (A.Gray) Britton & Rose
- Publication
- N. Amer. Fl. 23: 110 (1928)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Fabales
- Family
- Fabaceae
- Subfamily
- Caesalpinioideae
- Genus
- Senegalia
Synonyms
Acacia greggii Acacia durandiana Acacia rotundata Acacia greggii var. arizonica Mimosa rotundata