OregonFlora species comparison

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

usually 1, usually conspicuously white-tomentose, rarely glabrate.

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.

elliptic to oblanceolate, 6–40 × 1.5–10 cm;

margins pinnate;

lobes often with shallow teeth or again lobed;

spines weak to stout, 1–15 mm;

surfaces white-tomentose, adaxially sometimes thin to glabrate;

basal usually present at flowering, sessile, clasping, decurrent, or petiolate.

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

ovoid to spherical; (2)3–7 × 2–8 cm, thinly to densely arachnoid-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 25–40 mm, red, rarely white or pink;

tubes 8–18 mm;

throats 5–10 mm, gradually narrowed to tubes;

lobes 5–12 mm;

style tips 4–5 mm.

subequal to strongly imbricate, sometimes with inconspicuous glutinous ridges;

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

subequal to strongly imbricate; without glutinous ridges, linear to narrowly lanceolate, reflexed or ascending;

spines weak to moderately thick, 1–10 mm.

4.5–5.5 mm, tan to dark brown;

pappi 12–25 mm.

5–7 mm; light to dark brown;

pappi 20–30 mm.

few–many.

1–many.