Baccharis

Also known as:
Cotton-Seed Tree, Groundsel Bush, Groundsel Tree
Family:
Asteraceae
Origin:
North America

General description

Evergreen, much-branched shrub < 4 m tall. Stems are ribbed and mealy when young, becoming smooth with age. Leaves are oblong, apetiolate, toothed and alternate. Flowers are small, cream and borne in terminal flowerheads February – May. Achenes bear pappus.

What you need to know

To help protect our environment:

  • You must not breed, distribute, release or sell baccharis within the Auckland region.
  • You must not plant baccharis within the Auckland region, unless you are transferring an existing plant on your land to another location within the boundaries of the same property.
  • You must destroy any baccharis on land that you occupy if it has been planted in breach of the above rules and you are directed to do so by an authorised person.

Rock crevices, open and dry hillside, pastures, wasteland.

Seeds dispersed by wind and water.

Reduces livestock movement and pasture productivity. Potential to suppress native species in rocky outcrops, wetlands and other habitats.

Site Management

Follow up treated areas 3 times per year. Maintaining good pasture cover will suppress an infestation.

Recommended approaches

Physical control

Method: Dig or grub out

Plant parts requiring disposal: Seeds

Disposal options: Remove to greenwaste or landfill if practical

Biocontrol

Biocontrol is currently not available for this species.

Community agrichemical control recommendations

No qualifications
For small infestations:
Foliar spray with 10ml glyphosate green per 1L of water

Basic Growsafe certified
For medium to large infestations:
Foliar spray with 100ml glyphosate green per 10L of water

CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.

Similar species

boneseed
Chrysanthemoides monilifera

Boneseed has yellow flowers which appear from September - February. Seed pods are spherical ripening from green to black.

Search tags

RPMP status


Whole region (Sustained Control)
Hauraki Gulf Controlled Area Notice pest
Baccharis - Main species image