Senecio integerrimus (Lambstongue Ragwort) is a species of biennial herb in the family Asteraceae. They have a self-supporting growth form. They are native to Canada and The Contiguous United States. They have simple, broad leaves and yellow flowers. Flowers are visited by Milbert's Tortoiseshell, Parnassius smintheus smintheus, Gorgone Checkerspot, and Burnsius communis. Individuals can grow to 0.34 m.
EOL has data for 69 attributes, including: