近几年,通过对新疆北部地区杂草的野外调查研究,在准确鉴定的基础上,发现菊科(Asteraceae) 新的外来植物3种及新记录属1属,分别为一年蓬Erigeron annuus (L.) Pers.、大狼把草Bidens frondosa L.和粗毛牛膝菊Galinsoga quadriradiata Ruiz et Pav.。其中,牛膝菊属Galinsoga Ruiz et Pav.为新疆菊科新记录属。在此基础上,详细描述了它们的形态特征,并初步分析了它们在我国的地理分布。
Based on the field investigation and studying weeds in north Xinjiang in recent years, 3 new exotic plant species and 1 new record genus in Xinjiang were reported, they are Erigeron annuus (L.) Pers., Galinsoga quadriradiata Ruiz et Pav., Bidens frondosa L. and G. Ruiz et Pav., in which G. Ruiz et Pav. was the new record genus in Xinjiang. The morphological features and the geographic distribution of these plant species in China were described in detail so as to provide the theoretical basis and reference for investigating their current distribution in Xinjiang.
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