Lessingia arachnoidea Greene

Plants 15–80 cm. Stems erect, tan, glabrous or villous. Leaves: basal withering by flowering; cauline margins entire, faces eglandular, abaxial glabrous or villous. Heads borne singly, at ends of branchlets. Involucres obconic, 4–8 mm. Phyllaries purple-tipped, faces arachnose, sometimes gland-dotted; inner scarious. Disc florets (3–)8–18; corollas pink to lavender (color more intense in tubes); style-branch appendages truncate-penicillate, 0.1–0.3 mm. Pappi tan, usually shorter than cypselae, sometimes forming coronas, rarely equaling or longer than cypselae (Sonoma County). 2n = 10.