OregonFlora species comparison

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

usually 1, sparsely arachnoid-tomentose to 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 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.

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

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

subequal to strongly imbricate, sometimes with inconspicuous glutinous ridges;

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

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.

4.5–5.5 mm, tan to dark brown;

pappi 12–25 mm.

6–7 mm, brown;

pappi 25–40 mm.

few–many.

1–6 per branch;

lateral heads widely spaced along distal portions of branches.