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(Ageratum conyzoides, fam. Asteraceae)

Ageratum conyzoides Ageratum conyzoides Ageratum conyzoides Ageratum conyzoides Ageratum conyzoides
Erect or semi-prostrate annual or short-lived perennial herbs, 0.3-1m. Stems and leaves softly hairy with a characteristic odour when crushed.
Form or habit: Herb
Leaf:Simple Alternate

Opposite at base, later alternate, triangular shaped with heart-shaped to square base, regular rounded teeth along margin.

Flower conspicuous: Conspicuous
Flower colour: pale mauve to almost white
Flower description:Small fluffy heads, borne in terminal clusters.
Fruit conspicuous: Conspicuous
Fruit colour: Brown
Fruit: Dry
Fruit description: ‘Seeds’ black, about 2mm long, tipped by ring of chaff-like scales.
Food source for:
Toxicity:Toxic or irritant to domestic pets
Weed status:Environmental/garden escapee
Notes:Spread by: Wind, water.

Invades/threats: Weeds of disturbed areas. Cause harvesting difficulties in cane crops.

A. conyzoides is the more common species in this region then A. houstonianum which has seldom been recorded.
Information sources:

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