Colorado ragwort (Senecio soldanella)

Same genus

• Groundsel (Senecio vulgaris)
• Showy alpine ragwort (Senecio amplectens)
• Texas ragwort (Senecio ampullaceus)
• Chaparral ragwort (Senecio aphanactis)
• Arizona ragwort (Senecio arizonicus)
• Rayless ragwort (Senecio aronicoides)
• San Gabriel ragwort (Senecio astephanus)
• Tall blacktip ragwort (Senecio atratus)

The whole genus Ragwort (Senecio)