Acacia pycnantha

Shrubs or small trees, erect, to 8 m. Twigs reddish brown, slightly flexuous, terete, gla­brous. Leaves phyllodic; phyl­lode flat, falcate, narrowly elliptic to oblanceolate, 90–150 × 10–35 mm, venation pinnate, midvein medial, minor veins not obvious, apex obtuse, apiculate, surfaces glabrous; gland 1 (or 2), 3–45 mm distal to pulvinus; pulvinus 4–8 mm. Peduncles 2–5 mm. Inflo­rescences globose heads, densely flowered, 7–10 mm diam., usually in solitary pseudoracemes of 20–30 heads in leaf axils. Flowers 5-merous, golden yellow; calyx 1.5–2 mm; corolla 2.5–3 mm; filaments 3.5–4.5 mm; ovary glabrous. Legumes flattened, linear, 50–130 × 5–7 mm, slightly constricted between seeds. Seeds: aril light yellow, obovate, forming cap on seed.

Phenology: Flowering winter, spring.
Habitat: Disturbed coastal habitats.
Elevation: 0–100 m.

Distribution

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Introduced; Calif., se Australia.

Discussion

Acacia pycnantha is known from Los Angeles, Marin, Orange, San Diego, San Luis Obispo, and Santa Barbara counties.

Selected References

None.

Lower Taxa

None.