OregonFlora species comparison

usually 1, sparsely arachnoid-tomentose to glabrate.

1–several, thinly arachnoid to densely white-tomentose.

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.

oblong-elliptic, 10–30 × 3–12 cm;

margins entire to deeply dentate, lobed or pinnate;

spines 1–6 mm;

surfaces abaxially white-tomentose, adaxially thinly arachnoid-tomentose;

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

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

ovoid to hemispheric, 1.5–2.5 × 1.5–3 cm, glabrate to thinly arachnoid.

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 15–27 mm, white to lavender;

tubes 7–11 mm;

throats 5–11 mm;

lobes 5–7 mm;

style tips 5–7 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.

strongly imbricate, with prominent glutinous ridges;

tips ascending to spreading;

spines fine, 1–3 mm.

6–7 mm, brown;

pappi 25–40 mm.

3.5–7 mm, brown;

pappi 15–20 mm.

1–6 per branch;

lateral heads widely spaced along distal portions of branches.

1–few.