Annuals, rarely perennials, 15–80 cm; woody caudices taprooted. Stems 1 (rarely multistemmed), erect, branches few from mid to distal nodes, sparsely pilose. Leaves: basal usually withering by flowering, blades linear-oblanceolate, 30–60 × 3–8 mm, margins entire to apically dentate, coarsely hispido-pilose (apices obtuse to acute), faces sparsely hispido-pilose; cauline often only with distal present at flowering, blades linear-oblanceolate to linear, margins obscurely dentate or entire, coarsely hispid-pilose, faces sparsely hispid-pilose, stipitate-glandular. Heads 1–15(–50). Peduncles 1.5–10 cm, moderately short-hispido-pilose, stipitate-glandular distally; bracts foliaceous, grading into phyllaries. Phyllaries in 4–5 series, lanceolate to linear-lanceolate, strongly unequal, margins broadly scarious, faces sparsely hispido-pilose proximally, sparsely stipitate-glandular. Ray florets (7–)10(–14); laminae 6–13 × 1–2 mm. Disc florets 11–25, functionally staminate, sterile; corollas 3–4 mm, lobes 0.3–0.4 mm. Cypselae (ray) stramineous to brown, triangular in section, slightly ribbed, faces densely strigose; pappi in 2–3 series, of sometimes reddish proximally, yellow to tan or white distally, narrow-to broad-based bristles, outer basally broader, 1–2.5 mm, inner, 2–3 mm. 2n = 6, 8.
Home