OregonFlora species comparison

elliptic in outline, 2–25 × 2–10 cm;

margins usually denticulate, 2-pinnately lobed;

surfaces glabrous or lightly pubescent;

primary lobes in 4–10 pairs; secondary lobes linear to oblanceolate or triangular.

3–5 × 5–10 mm.

15–25; vestigial, yellow.

corollas 1.5–2 mm, yellow.

with chartaceous margins; inner often membranetipped.

1–2 mm, brown, 4–5-ribbed, glabrous or gland-dotted;

pappi 0 or of low crowns.

20–200;

peduncles 2–15 mm, glabrous or villous.

=18.