OregonFlora species comparison

5–34 cm, sparsely villous-tomentose; from single taproot.

ovate-lanceolate, undivided to pinnatifid, rarely with some leaves pinnately compound;

margins sharply serrate;

tips apiculate;

surfaces sparsely hispid;

basal leaves in 1–few rosettes;

blades 4.5–15 × 2–5.5 cm;

pinnae (when present) 4–11 mm wide;

petioles 1–9(13) cm, often one or more bract-like basal leaves present;

cauline leaves of 1 pair (when present); opposite;

blades 1–4(5.5) × 0.6–1.5 cm;

petioles 2–5.5(6.5) cm.

with 1 terminal head.

13–15 × 10–30 mm.

8–21, yellow;

rays 13–24 × 4–9 mm.

~8 mm.

linear-lanceolate, 11–18 × 2–4 mm;

tips acuminate, sparsely to densely villous-tomentose.

6–7 × 1.5–2 mm, glabrous.

11–12 mm.