The distribution of sinacalia tangutica (Maxim.) B. Nord. in Austria

Abstract

I report on the distribution of Chinese ragwort (Sinacalia tangutica) (Asteraceae, Magnoliopsida) in Austria. The first occurrence of this species was recorded 50 years ago in the Ybbs-valley in the pre-Alps of western Lower Austria. Here, I summarize the current distribution of the study species at this locality, and I present two new records. The composition of the invaded vegetation was documented by four relevés. Sinacalia tangutica forms dense populations in wet tall herb vegetation and open riverine forests in humid submontane climate. Thus, given the substantial expansion in the last decades in the Ybbs-valley, I suggest that the future spread of Sinacalia tangutica should be monitored, and if necessary, management actions should be taken.