Difference between revisions of "Acacia dealbata"

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Revision as of 22:13, 11 March 2010


Foliage and flowers


Plant Characteristics
Habit   tree

Height: 50 to 100
Width: 20 to 30
Lifespan: perennial
Origin: Australia (NSW to Tas)
Cultivation
Exposure: sun
Features: flowers
USDA Zones: 9 to 10.5
Flower features: yellow
Scientific Names

Fabaceae >

Acacia >

dealbata >


Acacia dealbata (Silver Wattle) is a species of Acacia, native to southeastern Australia in New South Wales, Victoria, Tasmania, and the Australian Capital Territory.[1]

It is a fast growing evergreen tree or shrub growing up to 30 m tall, typically a pioneer species after fire. The leaves are bipinnate, glaucous blue-green to silvery grey, 1–12 cm (occasionally to 17 cm) long and 1–11 cm broad, with 6–30 pairs of pinnae, each pinna divided into 10–68 pairs of leaflets; the leaflets are 0.7–6 mm long and 0.4–1 mm broad. The flowers are produced in large racemose inflorescences made up of numerous smaller globose bright yellow flowerheads of 13–42 individual flowers. The fruit is a flattened pod 2–11.5 cm long and 6–14 mm broad, containing several seeds.[2] Trees generally do not live longer than 30 to 40 years, after which in the wild they are succeeded by other species where bushfires are excluded.

Cultivation

Acacia dealbata is widely cultivated as an ornamental plant in warm temperate regions of the world, and is naturalised in some areas, including southwestern Western Australia, southeastern South Australia, Norfolk Island, the Mediterranean region, and California.

Propagation

Pests and diseases

Varieties

Kambah Karpet a variety of Acacia dealbata discovered at the Kambah Village.

Subspecies: There are two subspecies:

  • Acacia dealbata dealbata. Low to moderate altitudes. Tree to 30 m; leaves mostly 5–12 cm long.
  • Acacia dealbata subalpina Tindale & Kodela. High altitudes in the Snowy Mountains. Shrub to 5 m (rarely 10 m) tall; leaves mostly 1.5–8.5 cm long.

Gallery

References

  1. Australian Plant Name Index: Acacia dealbata
  2. Flora of Australia Online: Acacia dealbata

External links