WCC 2020 Res 004 - Activity Report

In South Africa the taxon is listed, and a risk analysis has recently been completed as per a specific scheme (Kumschick et al. 2020), noting that such documents are not in the public domain yet

In terms of measures to stop the e-commerce in invasive alien species via the Internet the following item was part of the CBD in 2024
CBD/COP/16/2
Item 21
Invasive alien species
Included an Annex II
Identification and minimization of additional risks associated with cross-border e-commerce in live organisms and the impacts thereof
with sections on: Suggested actions for national and subnational authorities and border agencies; Suggested actions for web marketplaces (sale platforms), e-payment service providers and postal and express courier services; and Suggested actions for relevant international organizations, bodies and agreements, including standard-setting organizations

Impact assessments for a number of grasses have recently been submitted to the EICAT Authority. The process of completing an EICAT impact assessments for Cortaderia selloana provides part of the foundational evidence needed for prioritisation by those tasked with such prioritisation of efforts.
https://iucn.org/resources/conservation-tool/environmental-impact-classification-alien-taxa

The IPBES IAS Thematic Assessment launched in September 2023 was a milestone in the communication of efforts to address the impact of biological invasions. The experts who complied the assessment that were not already part of the IUCN ISSG have been invited to become members.

The Environmental Impact Classification for Alien Taxa (EICAT) is the IUCN global standard for measuring the severity of environmental impacts caused by animals, fungi and plants living outside their natural range.

The IUCN ISSG has not conducted a prioritisation exercise such that it would be possible to declare that a particular taxon is of particular concern in a particular region. Neither was this specifically done as part of the IPBES IAS Assessment. The IPBES IAS Assessment in Supplementary Material 1.4 does, however, consider characteristic invaders in particular regions based on reported impact.

In South Africa a recent MSc study has been submitted for examination looking at the issue in South Africa, with a key finding that the use of inflorescences in the floriculture industry (for display) can lead to the spread of seed. While efforts have been made to sterilise such flowers, these appear to be ineffective.