Shrubs or trees, erect, to 30 m. Twigs dark purplish brown to black, slightly flexuous, ridged, pruinose, densely puberulent. Leaves compound, 80–170 mm; petiole 8–22 mm, densely puber­ulent, gland present, below proximalmost pinna pair, 0.5–1 mm diam., puberulent; rachis gland between most pinna pairs; pinnae 6–30 pairs, 15–55 mm, 2–7 mm between pinna pairs; leaflets 15–70 pairs per pinna, blades linear, 2–5 × 0.4–0.8 mm, base cuneate, apex obtuse to acute, not apiculate, surfaces densely puberulent. Peduncles 2–6 mm. Inflorescences globose heads, densely flowered, 6–9 mm diam., in axillary pseudoracemes of 11–30 heads or terminal pseudopanicles of 1–15 pseudoracemes. Flowers 5-merous, pale yellow to cream; calyx 0.6–1.1 mm; corolla 1.4–2 mm; filaments 3.5–4.5 mm; ovary gla­brous. Legumes flattened, oblong, 20–110 × 6–14 mm, constricted between some seeds. Seeds: aril light yellow, obovate, 2–3 mm, forming cap on seed. 2n = 26.

Phenology: Flowering winter, early spring.
Habitat: Disturbed areas.
Elevation: 0–300 m.

Distribution

• Generated Map
• Legacy Map

Introduced; Calif., se Australia, introduced also in s South America.

Discussion

Acacia dealbata is known from Butte, Los Angeles, Marin, Monterey, Napa, Riverside, Sacramento, Santa Clara, Santa Cruz, San Bernardino, and San Diego counties.

Selected References

None.

Lower Taxa

None.