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Invasion status and risk assessment for S alvia tiliifolia , a recently recognised introduction to C hina

2013; Wiley; Volume: 53; Issue: 5 Linguagem: Inglês

10.1111/wre.12030

1365-3180

Guo‐Xiong Hu, Chun‐Lei Xiang, E D Liu,

Allelopathy and phytotoxic interactions

Summary This study corrected the misidentification of an alien species, S alvia tiliifolia , which had been incorrectly identified as S . dugesii (a synonym of S . melissodora ) in C hina. The distribution of S . tiliifolia in C hina was surveyed and it was inferred that it was probably introduced into K unming, Y unnan in the 1990s and then spread to adjacent counties of Y unnan and south‐western S ichuan P rovince. The Australian weed risk assessment ( WRA ) was used to evaluate its invasive status. To determine the validity of A ustralian WRA in C hina, another 25 exotics representing casual alien plants, naturalised plants and invasive plants were tested. The A ustralian WRA was validated as a legitimate approach in C hina. S alvia tiliifolia scored 14, falling into the category of invasive plants. While the distribution of S. tiliifolia is currently restricted to Yunnan and a small part of Sichuan and the species has not displayed an adverse impact on local environments yet, the WRA results indicated that the species was a high risk plant. It was recommended that local land managers should monitor this species and take measures to stop its continuing expansion or eradicate it if possible.