OregonFlora species comparison

usually 1, sparsely arachnoid-tomentose to glabrate.

erect, branched or simple, sometimes spiny-winged.

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.

basal and cauline, alternate;

margins entire to deeply toothed or pinnately lobed;

lobes and teeth usually spiny.

heads solitary at branch tips or distal axils, or in raceme- or panicle-like arrays.

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

flat to convex; very bristly;

paleae 0.

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 bilateral, white or cream-colored to pink, red, or purple;

style tips elongate.

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.

many in 5–20 series, imbricate or not;

margins usually entire or occasionally scarious, ciliate-spiny, or erose;

midveins sometimes with glutinous ridges.

6–7 mm, brown;

pappi 25–40 mm.

compressed; ovoid, tan to dark brown, glabrous, attachment scar off-center;

pappi in 3–5 series, persistent or deciduous in rings.

1–6 per branch;

lateral heads widely spaced along distal portions of branches.

discoid, pedunculate or sessile.