OregonFlora species comparison

often acaulescent or short-caulescent, sometimes caulescent with a single bushy-branched stem; stout and fleshy, glabrous or sparsely arachnoid-tomentose.

linear to elliptic, 10–40 × 3–8 cm;

margins entire to deeply pinnately divided; plane or undulate;

spines usually thin to moderately thick, 2–15 mm;

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

basal usually present at flowering, sessile or petiolate.

ovoid to hemispheric, 1–3(4) × 1.5–6 cm, glabrous to thinly arachnoid-villous.

corollas 20–40 mm, white to purple, sometimes rose or pink-tinged;

tubes 9–22 mm;

throats 4–12 mm;

lobes 4–10 mm;

styles conspicuously exserted;

tips 3–8 mm.

imbricate; without glutinous ridges;

spines thin, 0–12 mm.

4–6.5 mm; light to dark brown, occasionally striate;

pappi 15–35 mm.

1–many.