Skip to main content
Subscribe to Newsletter
Name

Spiny head sida

Weed Habitat 

  • Considered to be from tropical America, this weed invades disturbed and overgrazed areas.

Description 

  • An erect small shrub growing to around 1.5 m.
  • Stems woody, branching several times, with well-developed tap root.
  • Leaves narrow, lance shaped, tapered both ends, serrated edges.
  • Yellow flowers, usually solitary or in pairs in the leaf axils.
  • Fruit is a hard, dark brown dry capsule, splitting into 5-8 segments each with a wedge-shaped, black seed having 2 sharp points at one end.

Sida acutaSida acuta

Share
Plant Type
Leaf Arrangement
Other weed identifiers
Plant Life Cycle
Weed Declaration
Currently not declared however under the Biosecurity Act 2014 you still have an obligation to prevent or minimise a biosecurity risk posed by a pest.
Weed Spread