PlantNET Home DONATE TODAY | PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
WeedAlert
Telopea Journal
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Ageratum conyzoides L.
Family Asteraceae
Common name: Goatweed

Ageratum conyzoides L. APNI*

Description: Erect herb, 0.5–1 m high, branching or almost unbranched, sparsely hairy.

Leaves ovate, 2–6 cm long, 1.5–4.5 cm wide, apex acute to obtuse, margins crenate or regularly toothed, both surfaces with scattered hairs; petiole 5–15 mm long, hairy.

Corymbs compact; corymb branches 3–8 mm long, hairy; heads ± globose, 5–6 mm diam.; involucral bracts oblanceolate or oblong, 4–5 mm long, glabrous or with very few scattered hairs. Florets mauve or white.

Achenes 1.5–2 mm long, black, glabrous or slightly hairy; pappus of c. 5 white awned scales, 2–3 mm long.


Flowering: most of year, mainly summer.

Distribution and occurrence: Common weed of pastures and wasteland; north from Maclean district, although 1 collection has been identified from Central Coast. Native of trop. America.
NSW subdivisions: *NC, *LHI
Other Australian states: *Qld *N.T.
AVH map***

Text by M. F. Porteners, edited C. Herscovitch Jul 2009.
Taxon concept:

One subspecies in NSW: Ageratum conyzoides subsp. conyzoides

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET