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Kitaibelia vol. 7 – no. 2. (2002) p.249-255.
A sáfrányos imola (Centaurea solstitialis L.) a Mosoni-síkon
Centaurea solstitialis is a threatened, red list species in Hungary. In contrast, it is an invasive weed species in the western United States. This paper begins with a short review of the introduction, spread, biology, ecology and management of this plant in the United States.
According to literature data C. solstitialis in 1908 was still frequent, but in 1973 had only a sporadic distribution in Hungary and seldom caused heavily infestation. In olden times the plant was used as a medicinal herb (Radix Spinae solstitialis). Today this species has only a very few actual known occurrence data. On Moson-plain in North-western Hungary C. solstitialis occurs only in the vicinity of one village, which calls Hegyeshalom. Here it can be found along roadsides and earth tracks, along neglected irrigation canals, on fallow land and field edges and rare in crop fields as well. The recent highway building in the neighbourhood had a favourable effect on the habitat of yellow starthistle. It grows vigorous population along the new roadsides in a short distance, but it seems to be no further spread. The local distribution with the enhanced individual number can be seen on Figure 2.; and the typical accompanying species with abundant number on Table 1.