OregonFlora species comparison

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

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.

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

corollas 15–27 mm, white to lavender;

tubes 7–11 mm;

throats 5–11 mm;

lobes 5–7 mm;

style tips 5–7 mm.

strongly imbricate, with prominent glutinous ridges;

tips ascending to spreading;

spines fine, 1–3 mm.

3.5–7 mm, brown;

pappi 15–20 mm.

1–few.