Global invasive species database

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Common name
horse weed (English), asthma weed (English)
Similar species
Conyza floribunda is listed as an agricultural and naturalized weed.

Principal source:

Compiler: IUCN SSC Invasive Species Specialist Group (ISSG) with support from the EU-funded South Atlantic Invasive Species project, coordinated by the Royal Society for the Protection of Birds (RSPB)


Publication date: 2010-08-16

Recommended citation: Global Invasive Species Database (2021) Species profile: Conyza floribunda. Downloaded from on 28-09-2021.

General Impacts
Conyza floribunda is listed as an agricultural and naturalized weed in the Global Compendium of Weeds (2008).
Countries (or multi-country features) with distribution records for Conyza floribunda
Informations on Conyza floribunda has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Conyza floribunda in information
Arrival date
Species notes for this location
Location note
Management notes for this location
Ecosystem services:
Impact information
Conyza floribunda is listed as an agricultural and naturalized weed in the Global Compendium of Weeds (2008).
Red List assessed species 0:
Management information
4 references found for Conyza floribunda

Management information
Global Compendium of Weeds., 2008. Conyza floribunda (Asteraceae)
Summary: Available from: [Accessed 14 August 2008]
IUCN/SSC Invasive Species Specialist Group (ISSG)., 2010. A Compilation of Information Sources for Conservation Managers.
Summary: This compilation of information sources can be sorted on keywords for example: Baits & Lures, Non Target Species, Eradication, Monitoring, Risk Assessment, Weeds, Herbicides etc. This compilation is at present in Excel format, this will be web-enabled as a searchable database shortly. This version of the database has been developed by the IUCN SSC ISSG as part of an Overseas Territories Environmental Programme funded project XOT603 in partnership with the Cayman Islands Government - Department of Environment. The compilation is a work under progress, the ISSG will manage, maintain and enhance the database with current and newly published information, reports, journal articles etc.
General information
ITIS (Integrated Taxonomic Information System), 2008. Online Database Conyza floribunda Kunth
Summary: An online database that provides taxonomic information, common names, synonyms and geographical jurisdiction of a species. In addition links are provided to retrieve biological records and collection information from the Global Biodiversity Information Facility (GBIF) Data Portal and bioscience articles from BioOne journals.
Available from: [Accessed 20 August 2008]
The following 0 contacts offer information an advice on Conyza floribunda
Conyza floribunda
horse weed, asthma weed
Date assessed
Year published
Eicat category
Justification for EICAT assessment
Confidence rating
Mechanism(s) of maximum impact
Countries of most severe impact
Description of impacts
Recommended citation
(2021). Conyza floribunda. IUCN Environmental Impact Classification for Alien Taxa (EICAT).