OregonFlora species comparison

1–many, glabrous to appressed-tomentose.

elliptic to oblong, 3–30 × 1–6 cm;

margins entire to dentate or pinnately lobed;

spines 1–7 mm;

surfaces abaxially ± tomentose, adaxially glabrous to thinly tomentose;

basal usually absent at flowering, sessile, sometimes decurrent.

ovoid, becoming campanulate in fruit, 1–2 × 1–2(2.5) cm.

corollas purple, rarely white or pink, staminate florets 12–18 mm;

tubes 8–11 mm;

throats 1–2 mm;

lobes 3–5 mm, pistillate florets 14–20 mm;

tubes 10–15 mm;

throats 0.5–1.5 mm;

lobes 2–3 mm;

style tips 1–2 mm.

strongly imbricate, with narrow glutinous ridges; outer with weak spines to 1 mm.

2–4 mm, brown;

pappi 13–32 mm.

(1)few–many.