Thymophylla tenuiloba var. tenuiloba (Compositae: Tageteae), a newly naturalized species in Taiwan

臺灣一新馴化植物－－金毛菊（菊科：萬壽菊族）

Thymophylla tenuiloba (DC.) Small var. tenuiloba is a newly naturalized species in Taiwan. This species is a common ornamental crop, often introduced in gardens. We found several populations in Taiwan, near the urban areas, revealed the dispersal is related to people activity. Line drawing, photos and distribution map were provided, the naturalized species of Tageteae in Taiwan were also revised in this article. 本文報導新馴化植物－－金毛菊，本種隸屬於菊科萬壽菊族。本族臺灣無原生物種，且所有種類均為馴化植物。本種發現馴化於臺灣中部，推測應為人為引進之觀賞花卉，逸出於野外而馴化，文本提供彩色照片、描述及線繪圖等。並回顧臺灣產本族植物之種類、原產地及臺灣之分布，結果顯示本族植物除金毛菊推測因園藝引進而馴化外，其餘種類之過程不詳，但由於分布地區多位於人為活動之範圍，如荒地、林道、河堤等，推測為建設施工或人為無意間引進因而造成馴化現象，文中提供本族現有種類檢索表供鑑定之用。