Difference between revisions of "Acacia dealbata"
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'''''Acacia dealbata''''' ('''Silver Wattle''') is a species of ''[[Acacia]]'', native to southeastern [[Australia]] in [[New South Wales]], [[Victoria (Australia)|Victoria]], [[Tasmania]], and the [[Australian Capital Territory]].<ref name=anbg>Australian Plant Name Index: [http://www.anbg.gov.au/cgi-bin/apni?taxon_name=Acacia%20dealbata%25 ''Acacia dealbata'']</ref> | '''''Acacia dealbata''''' ('''Silver Wattle''') is a species of ''[[Acacia]]'', native to southeastern [[Australia]] in [[New South Wales]], [[Victoria (Australia)|Victoria]], [[Tasmania]], and the [[Australian Capital Territory]].<ref name=anbg>Australian Plant Name Index: [http://www.anbg.gov.au/cgi-bin/apni?taxon_name=Acacia%20dealbata%25 ''Acacia dealbata'']</ref> | ||
| − | It is a fast growing [[evergreen]] [[tree]] or [[shrub]] growing up to 30 m tall, typically a pioneer species after fire. The [[leaf|leaves]] are bipinnate, glaucous blue-green to silvery grey, | + | It is a fast growing [[evergreen]] [[tree]] or [[shrub]] growing up to 30 m tall, typically a pioneer species after fire. The [[leaf|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 [[flower]]s are produced in large [[raceme|racemose]] [[inflorescence]]s made up of numerous smaller globose bright yellow flowerheads of 13–42 individual flowers. The [[fruit]] is a flattened [[legume|pod]] 2–11.5 cm long and 6–14 mm broad, containing several [[seed]]s.<ref name=fa>Flora of Australia Online: [http://www.anbg.gov.au/abrs/online-resources/flora/redirect.jsp ''Acacia dealbata'']</ref> Trees generally do not live longer than 30 to 40 years, after which in the wild they are [[Ecological succession|succeeded]] by other species where bushfires are excluded. |
==Cultivation== | ==Cultivation== | ||
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==Varieties== | ==Varieties== | ||
| − | [[Image:Kambah Karpet Acacia dealbata.JPG|thumb | + | [[Image:Kambah Karpet Acacia dealbata.JPG|thumb|Kambah Karpet a variety of ''Acacia dealbata'' discovered at the [[Kambah]] Village.]] |
Subspecies: | Subspecies: | ||
There are two [[subspecies]]: | There are two [[subspecies]]: | ||
| − | *''Acacia dealbata'' ''dealbata''. Low to moderate altitudes. Tree to 30 m; leaves mostly | + | *''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. | + | *''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== | ==Gallery== | ||
Revision as of 22:15, 11 March 2010
| Habit | tree
| |
|---|---|---|
| Height: | ⇕ | 50 to 100 |
| Width: | ⇔ | 20 to 30 |
| Lifespan: | ⌛ | perennial |
| Origin: | ✈ | Australia (NSW to Tas) |
| Exposure: | ☼ | sun |
|---|---|---|
| Features: | ✓ | flowers |
| USDA Zones: | 9 to 10.5 | |
| Flower features: | ❀ | yellow |
|
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
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
Austins Ferry, Tasmania, Australia
photo 1
photo 2
photo 3
References
- ↑ Australian Plant Name Index: Acacia dealbata
- ↑ Flora of Australia Online: Acacia dealbata
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Acacia dealbata. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Acacia dealbata QR Code (Size 50, 100, 200, 500)
