Senegalia greggii (A. Gray) Britton & Rose

vernacular catclaw acacia — species · Fabaceae

USDA: SEGR4
GBIF: 2978335
Rank: species

catclaw acacia (Senegalia greggii) — Platephotograph · mspnutt source · iNaturalist ↗

§2Habit & range

Growth habit: Shrub, Tree
Duration: Perennial
Group: Dicot
Family: Fabaceae Lindl.
Genus: Senegalia

§2a

Native status, by region

L48 Lower 48 States Native

§2b

County-level range

· 41 counties across 3 states/territories

Legend Native · 41 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought: High
Shade: High
Moisture use: Low
Fire: High
Salinity: None
Anaerobic: None
CaCO₃: High
Hedging: High

§3b

Climate & soil

Cold tolerance: -13 °F minimum
Frost-free days: 250 min.
Precipitation: 3–20 in/yr
pH range: 6.5–8.5
Root depth: 12 in min.
Fertility need: Low
Soil texture: coarse, medium, fine

§3c

Form & growth

Growth form: Multiple Stem
Growth rate: Slow
Lifespan: Long
Mature height: 20 ft
Height @ 20 y: 15 ft
Foliage texture: Fine
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: Yellow
Fruit colour: Brown
Fire resistant: No
N fixation: None
Toxicity: None

§3d

Reproduction

Bloom period: Mid Spring
Seed abundance: High
Seed begins: Summer
Seed ends: Fall
Spread rate: Moderate
Stratify: No
Seeds / lb: 1,360
Propagation: seed, bare root, container

§3e

Use & availability

Commercial availability: Field Collections Only
Nursery stock: No
Browse palatability: Medium
Palatable, human: Yes
Protein potential: Medium
Lumber: Yes
Christmas tree: No

§4Counties, by state

Recorded in 41 counties across 3 states/territories.

Arizona view state ↗ 13 N ▾

New Mexico view state ↗ 8 N ▾

Texas view state ↗ 20 N ▾

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/SEGR4 ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/2978335 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T10:50:45Z