Common to many urban environments, the presence of weeds can present a threat to biodiversity within our bushland reserves, parks and gardens.
A weed is defined as “a plant out of place”.
Weeds are very context specific. In bushland we consider any plant which is not historically part of a given ecosystem a weed, thus even a non-local native plant may be a weed outside of its natural range. To provide clarity we use the term “indigenous plant” to refer to those plants which are naturally a part of the ecosystems which occur in our area.
Removing weeds forms a large part of what we do to manage and protect bushland. Work priorities are based on the level of threat a given weed may present to the overall functioning of an ecosystem.
Some weeds are considered such a widespread threat that their control or removal is required by law.
You can find a list of the Priority Weeds for the Greater Sydney Region here: https://weeds.dpi.nsw.gov.au/WeedBiosecurities?AreaId=110
Information on Weeds of National Significance (WoNS) can be found at: https://weeds.org.au/weeds-profiles/
Comprehensive information on the identification, impact, management and removal of many of the weeds found locally can also be found at https://weeds.org.au/ or www.sydneyweeds.org.au.
Here are some examples of key environmental weeds found in Randwick City
Environmental weeds in Randwick City
The following table lists some of the main environmental weeds in this area.
|Common name||Botanical name|
|African Lovegrass||Eragrostis curvula|
|African Olive||Olea europaea subspecies: africana|
|Asparagus Fern||Protasparagus aethiopicus|
|Bamboo||Arundinaria spp. Bambusa spp. Phyllostachys spp.|
|Camphor Laurel||Cinnamomum camphora|
|Century Plant||Agave americana|
|Cobbler's Pegs||Bidens pilosa|
|Crofton Weed||Ageratina adenophora|
|Fishbone Fern||Nephrolepis cordifolia|
|Japanese Honeysuckle||Lonicera japonica|
|Lion's Tail||Leonotis leonurus|
|Madeira Vine||Anredera cordifolia|
|Mickey Mouse Bush||Ochna serrulata|
|Mirror Bush||Coprosma repens|
|Morning Glory||Ipomoea indica|
|Morning Glory, Coastal||Ipomoea cairica|
|Moth Vine||Araujia sericiflora|
|Noogoora Burr||Xanthium occidentale|
|Pampas Lily of the Valley||Salpichroa origanifolia|
|Panic Veldtgrass||Ehrharta erecta|
|Senna or Cassia||Senna pendula var glabrata|
|Turkey Rhubarb||Acetosa sagittate|