OregonFlora species comparison

ovate to lanceolate in outline, 2–12 × 1–4 cm;

margins often dentate, 1–2–pinnately lobed;

surfaces glabrous or minutely pilose;

primary lobes in 2–3(4) pairs; secondary lobes ovate to oblanceolate.

3–3.5 × 5–12 mm.

10–40;

rays 3–6 mm, white.

corollas 1–3 mm, yellow.

with chartaceous margins; inner not membranetipped.

1–2 mm, brown, glabrous, 5–8-ribbed;

pappi 0 or of low crowns.

5–25;

peduncles 1–10 cm, glabrous or puberulent.

=18.