OregonFlora species comparison

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

forming clumps, 14–54 cm, green, villous-hirsute, with shorter, glandular hairs.

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.

simple;

margins entire to toothed;

teeth rounded and apiculate;

surfaces abaxially sparsely hirsute, adaxially sparsely hirsute, villous-hirsute on veins;

basal leaves in multiple rosettes;

blades deltate, 7.5–27 × 6–16 cm, bases cordate or hastate;

petioles 10–27 cm;

cauline blades 3–7.5 × 1.1–2.7 cm;

petioles 0–8.5 cm.

with 1 terminal head.

with 1 larger; terminal head and 0–2 smaller; axillary heads;

peduncles 1–12 cm.

13–15 × 10–30 mm.

terminal 10–15 × 20–33 mm; axillary 8–10 × 11–17 mm.

8–21, yellow;

rays 13–24 × 4–9 mm.

deciduous, 11–21 on large heads, 6–9 on small heads, yellow;

rays 18–35 × 4–17 mm.

~8 mm.

5–8 mm.

linear-lanceolate, 11–18 × 2–4 mm;

tips acuminate, sparsely to densely villous-tomentose.

ovate, 10–32 × 4–9 mm, villous; more densely so at bases; outer phyllaries often lanceolate; longer than inner.

6–7 × 1.5–2 mm, glabrous.

9 × 1.5 mm, glabrous.

11–12 mm.

~7 mm.

=38.