广西三种新记录归化植物及其入侵性分析

该文报道了广西三种新记录归化植物,即长芒苋(Amaranthus palmeri)、橙红茑萝(Ipomoea hederifolia)和宽叶雀稗(Paspalum wettsteinii)。其中,长芒苋是人为无意引进的外来种,该植物成为2016年我国环境保护部与中国科学院联合发布的第四批外来入侵种之一;橙红茑萝和宽叶雀稗属于人为有意引进栽培,已在自然生境中定居,它们是具有潜在入侵性的外来种。同时还简要介绍了此三种新记录植物的分布、生长特征和繁殖特性,对其扩散性和入侵性进行了分析和讨论。这三种植物在广西首次发现归化,为广西外来入侵物种的预防和控制提供了基础资料。

Three new records of naturalized plants in Guangxi and analyses on their invasiveness

Three species of naturalized plants were reported as new records to Guangxi of China, i.e. Amaranthus palmeri, Ipomoea hederifolia and Paspalum wettsteinii. Amaranthus palmeri is an unconsciously introduced exotic species, which was listed in the fourth batch of exotic invasive plants in China by the Ministry of Environmental Protection of the People''s Republic of China and Chinese Academy of Sciences in 2016. Ipomoea hederifolia and Paspalum wettsteinii are deliberately introduced exotic species, and established in natural habitats and may become potential invasive plants. The distribution, growth characteristics and propagation properties of the three exotic species were introduced; their spread and invasiveness were also analyzed and discussed in this article. The discovery for the three naturalized plants in natural habitats provides information for prevention and controlling invasive plants in Guangxi.