Acacia longifolia |
Acacia dealbata |
|
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golden wattle, sidney golden wattle, sydney golden wattle |
blue wattle, silver wattle |
|
Habit | Shrubs or trees, erect, to 10 m. Twigs dark reddish brown, not flexuous, ridged, glabrous. | Shrubs or trees, erect, to 30 m. Twigs dark purplish brown to black, slightly flexuous, ridged, pruinose, densely puberulent. |
Leaves | phyllodic; phyllode flat, not falcate, narrowly elliptic, 50–150 × 10–25 mm, venation parallel, with 2–4 prominent veins, minor veins prominent, apex acute to obtuse, apiculate, surfaces glabrous; gland 1, 0–7 mm distal to pulvinus; pulvinus 2–5 mm. |
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. |
Inflorescences | cylindrical spikes, densely flowered, 20–50 × 5–8 mm, solitary or in fascicles of 2 or 3 in leaf axils. |
globose heads, densely flowered, 6–9 mm diam., in axillary pseudoracemes of 11–30 heads or terminal pseudopanicles of 1–15 pseudoracemes. |
Peduncles | 0–2 mm. |
2–6 mm. |
Flowers | 4-merous, bright yellow; calyx 0.6–0.9 mm; corolla 1.5–2.1 mm; filaments 2.6–3.6 mm; ovary pubescent. |
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 | elliptic in cross section, linear, 50–150 × 5–9 mm, somewhat constricted between seeds. |
flattened, oblong, 20–110 × 6–14 mm, constricted between some seeds. |
Seeds | aril light yellow, folded several times into thickened, lateral, skirtlike aril covering seed apex. |
aril light yellow, obovate, 2–3 mm, forming cap on seed. |
2n | = 26. |
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Acacia longifolia |
Acacia dealbata |
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Phenology | Flowering winter, spring. | Flowering winter, early spring. |
Habitat | Sandy coastal areas. | Disturbed areas. |
Elevation | 0–40 m. (0–100 ft.) | 0–300 m. (0–1000 ft.) |
Distribution |
CA; Pacific Islands (Kei Islands, New Guinea); se Australia [Introduced in North America; introduced also in s South America]
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CA; se Australia [Introduced in North America; introduced also in s South America]
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Discussion | Acacia longifolia is known from Alameda, Contra Costa, Los Angeles, Marin, Monterey, Orange, Riverside, San Bernardino, San Diego, San Francisco, San Luis Obispo, Santa Barbara, Santa Cruz, Solano, and Ventura counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Acacia dealbata is known from Butte, Los Angeles, Marin, Monterey, Napa, Riverside, Sacramento, Santa Clara, Santa Cruz, San Bernardino, and San Diego counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Caesalpinioideae (Mimosoid clade) > Acacia | Fabaceae > subfam. Caesalpinioideae (Mimosoid clade) > Acacia |
Sibling taxa | ||
Synonyms | Mimosa longifolia | |
Name authority | (Andrews) Willdenow: Sp. Pl. 4: 1052. (1806) | Link: Enum. Hort. Berol. Alt. 2: 445. (1822) |
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