OregonFlora species comparison

usually 1; slender, arachnoid-villous, sometimes thinly so.

usually single, spreading-villous, sometimes arachnoid.

linear-oblong to elliptic, 7–35 × 1–15 cm;

margins entire to dentate or pinnately lobed;

lobes triangular-ovate to linear;

spines fine, 1–6 mm;

surfaces abaxially thinly to densely tomentose, adaxially glabrate to thinly arachnoid-villous;

basal occasionally present at flowering, sessile, clasping, or petiolate.

oblong-lanceolate to obovate, 15–40 × 6–15 cm;

margins 1–2-pinnate;

lobes lanceolate to triangular;

spines 2–10(15) mm;

surfaces abaxially tomentose; ± villous, adaxially glabrate to sparsely tomentose, with appressed bristle-like spines;

basal absent or present at flowering, sessile, decurrent, or petiolate.

hemispheric to campanulate, 1–2.5 × 1.5–3.5 cm, glabrous to thinly arachnoid-villous.

hemispheric to campanulate, 2–4 × 2–4 cm, thinly tomentose.

corollas 16–25 mm, cream-colored to purple;

tubes 6–12 mm;

throats 5–10.5 mm;

lobes 3.5–8 mm;

styles conspicuously exserted;

tips 4–6 mm.

corollas 25–35 mm, purple, rarely white;

tubes 18–25 mm;

throats 3–6 mm;

lobes 5–9 mm;

style tips 3.5–6 mm.

subequal to strongly imbricate, sometimes with inconspicuous glutinous ridges;

spines 1–6 mm; outer bases ? 2 mm wide.

without glutinous ridges;

spines 1–5 mm.

4.5–5.5 mm, tan to dark brown;

pappi 12–25 mm.

3–5 mm, light brown with darker streaks;

pappi 20–30 mm.

few–many.

few to many.