senecio 15
It is a genus of plants in the family Asteraceae. The Latin word means old, old man. It is a very cosmopolitan, diverse and abundant genus, which has approximately 4400 species. In large proportion they are toxic and of medicinal uses. Among them are arnica. They are also called yellow flower, gray grass, cineraria or yuyito. In Colombia they are páramos plants and covered with whitish pubescences.