Environmental Weeds in Sydney North

• Noxious Weeds
• Other Significant Environmental Weeds
• Weed Alerts

Weed control

• Hand removal techniques
• Biocontrol

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Willows

Botanical Name: Salix species except S. babylonica, S. x reichardtii, S. x calodendron
Noxious Weed Category:
CLASS 5 in NSW


Black Willow (Salix nigra)
Source: Geoff Sainty : Alps Invaders
Grey Sallow (Salix cinerea)
Source: NSW Agriculture : WEEDdeck 1999

 
Special Note: All Willows, except Weeping Willow (Salix babylonica) and two Pussy Willows (S. x reichardtii and S. x calodendron) are declared noxious in New South Wales.

 

Description:
 Originating from North America & Eurasia, Willows are a deciduous, rapidly-growing tree to about 10 - 20m tall with one to many trunks.

Male catkins (a dense spike of single sex flowers) yellow, female catkins green, appearing in spring.

Dispersal:
Seeds and pieces are dispersed by wind and water for long distances.

Impact on Bushland:
A major invasive fast growing woody weed of streams and stream banks.

Control:

Manual: Hand pull seedlings.
Chemical: Please contact your local control authority for advice on chemical control.

Similar Species:

Suggested Alternatives:
Black Wattle (Callicoma serratifolia) 6m, Water Gum (Tristaniopsis laurina) 8m+, Grey Myrtle (Backhousia myrtifolia).

References:
Weeds of Blue Mountains Bushland, Blue Mountains City Council and NPWS Blue Mountains