OregonFlora species comparison

up to 35 cm, tomentose; from single taproot.

6–38 cm, sericeous; from single taproot.

lanceolate-oblong, 1-pinnately divided;

pinnae toothed, with teeth only on lower margins;

surfaces tomentose;

basal leaves in 1–few rosettes;

blades 12–22 × 6–8 cm;

pinnae 10–36 mm wide;

petioles 7–20 cm;

cauline blades 1.5–5 × 0.3–0.9 cm;

petioles 6–9 cm.

ovate-lanceolate, 1-pinnately divided almost or entirely to midribs, often more deeply divided proximally than distally;

margins entire or few-toothed, occasionally some lower leaves serrate on lower margins;

surfaces sericeous; more densely so abaxially than adaxially;

basal leaves in 1–few rosettes;

blades 3–18 × 1–7 cm;

pinnae 6–16 mm wide;

petioles 3–17 cm;

cauline leaves in 1 pair; opposite, reduced;

blades 2.5–4 × 1–1.6 cm;

petioles 2.5–4 cm.

with 1 terminal head.

with 1 terminal head.

14–18 × 25–30 mm.

12–15 × 15–22 mm.

14–16, yellow;

rays 35–40 × 8–11 mm.

13–14, yellow;

rays 12–20 × 5–8 mm.

~9 mm.

~9 mm.

ovate-lanceolate, 20–25 × 5–6 mm;

tips acuminate, tomentose.

ovate, 10–17 × 5–9 mm;

tips acuminate, sericeous.

8–9 mm, glabrous.

6–7 × 1.5 mm, glabrous.

10–12 mm.

13–14 mm.

=100 ± 2.