OregonFlora species comparison

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

1–several, white-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.

elliptic to ovate, 10–40 × 1–10(14) cm;

margins shallowly dentate to deeply pinnate, undulate;

spines 2–12 mm;

surfaces abaxially densely white-tomentose, adaxially glabrate to sparsely tomentose;

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

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

ovoid to campanulate, 2.5–4.5 × 1.5–4.5 cm, glabrate to thinly tomentose.

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.

corollas 24–50 mm, white to pale lavender or pink;

tubes 12–28 mm;

throats 6–14 mm;

lobes 7–13 mm;

style tips 5–7.5 mm.

imbricate; without glutinous ridges;

spines thin, 0–12 mm.

imbricate, with prominent glutinous ridges;

spines spreading to reflexed, 1.5–5 mm.

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

pappi 15–35 mm.

6–7 mm; light to dark brown;

pappi 20–40 mm.

1–many.

1–10.