OregonFlora species comparison

usually 1, sparsely arachnoid-tomentose to glabrate.

usually 1, sparsely to densely arachnoid-villous, often also tomentose to glabrate.

elliptic to linear-oblong, 8–20(35) × 2–8 cm, gradually reduced above;

margins coarsely dentate or 1–2-pinnate;

spines 1–5 mm;

surfaces abaxially ± thinly gray-tomentose, adaxially glabrous to sparsely pilose;

basal usually present at flowering, clasping to petiolate.

oblanceolate to elliptic, 10–40(50) × 3–12 cm;

margins 1–2-pinnate;

spines 2–7 mm;

surfaces glabrate to arachnoid-tomentose; abaxial veins prominent; straw-colored;

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

broadly cylindric to narrowly campanulate, 3–5 × 2–4 cm, glabrous to thinly tomentose.

ovoid to hemispheric or campanulate, 1.5–3.5 × 1.5–5 cm, glabrate to thinly tomentose.

corollas 30–45 mm, red, occasionally red-purple;

tubes 10–20 mm;

throats abruptly narrowed to tubes, 10–16 mm;

lobes 9–11 mm;

styles conspicuously exserted;

tips 3.5–5 mm, sometimes geniculate.

corollas 20–38 mm, cream-colored to purple;

tubes 8–15 mm;

throats 5.5–12 mm;

lobes 5.5–7 mm;

style tips 4–6(7) mm.

without glutinous ridges;

spines weak, 1–3 mm; outer short, linear-lanceolate, appressed;

margins entire or spiny-ciliate;

tips long-acuminate; inner linear; long; entire;

tips red to purple; flat.

with glutinous ridges;

tips ascending to spreading;

spines fine, 2–4 mm.

6–7 mm, brown;

pappi 25–40 mm.

5–8 mm; light to dark brown;

pappi 15–25 mm.

1–6 per branch;

lateral heads widely spaced along distal portions of branches.

1–few.