Acacia decurrens
System : Terrestrial
Kingdom
Phylum
Class
Order
Family
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
  • Not Evaluated
    NE
  • No Alien Population
    NA
  • Data Deficient
    DD
  • Minimal Concern
    MC
  • Minor
    MN
  • Moderate
    MO
  • Major
    MR
  • Massive
    MV
  • General
  • Distribution
  • Impact
  • Management
  • Bibliography
  • Contact
Common name
 
Synonym
Similar species
Summary

Principal source:

Compiler:

Review:

Publication date:

Recommended citation: Global Invasive Species Database (2025) Species profile: Acacia decurrens. Downloaded from http://iucngisd.org/gisd/speciesname/Acacia+decurrens on 14-01-2025.

Countries (or multi-country features) with distribution records for Acacia decurrens
ALIEN RANGE
NATIVE RANGE
Informations on Acacia decurrens has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Acacia decurrens in information
Status
Invasiveness
Arrival date
Occurrence
Source
Introduction
Species notes for this location
Location note
Management notes for this location
Impact
Mechanism:
Outcome:
Ecosystem services:
Impact information
Locations
ALGERIA
ETHIOPIA
INDONESIA
Mechanism
[1] Competition
[3] Other
Management information
Contact
The following 0 contacts offer information an advice on Acacia decurrens
MO; MR
Acacia decurrens
Date assessed
2020-09-27
Year published
2023
Eicat category
MO (Moderate); MR (Major)
Justification for EICAT assessment


It was noted that Acacia decurrens Willd. invaded the park and threatened the cork oak ecosystem (Beddiar et al., 2012). Results showed the negative effect of acacia on cork oak growth, its mycorrhizal status as well as on the morphotypic diversity of its ectomycorrhizae. The plant and fungal biodiversity decreased significantly in the sites invaded by this acacia species. A. decurrens homogenized invaded areas and was found to have the ability to inhibit and compete with native species (Afrianto et al., 2010).
Confidence rating
Low
Mechanism(s) of maximum impact
Structural Impact on ecosystem; Chemical impact on ecosystems
Countries of most severe impact
Indonesia; Algeria
Description of impacts
Only one major and one moderate impact. 3 DD impacts mainly because soil properties impacted but no measure on how it affects native species. Acacia decurrens competes with native species. Structurally impacts environment through homogenisation. Chemical impact leads to decreased plant and fungal biodiversity.
Assessor
Cally Jansen
Contributors
Reviewers
EICAT authority
Recommended citation
Cally Jansen (2025). Acacia decurrens. IUCN Environmental Impact Classification for Alien Taxa (EICAT).