OregonFlora species comparison

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

usually 1, sparsely to densely arachnoid-villous.

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.

oblong to oblanceolate, 5–50 × 1–10 cm;

margins entire, sometimes undulate, coarsely dentate to deeply pinnate;

spines 2–10 mm;

surfaces abaxially sparsely glabrate to arachnoid-tomentose, adaxially glabrate to sparsely villous, often villous along veins;

basal usually absent at flowering, sessile, clasping, or petiolate.

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

narrowly ovoid to hemispheric or campanulate, 1.5–4 × 1.5–4 cm, thinly to densely arachnoid-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 14–22 mm, purple to pink, rarely white;

tubes 7–11 mm;

throats 4–8 mm;

lobes (2)4–7 mm;

styles conspicuously exserted;

tips 3–4 mm.

subequal to strongly imbricate, sometimes with inconspicuous glutinous ridges;

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

without glutinous ridges;

spines slender, 1–15 mm; outer bases < 2 mm wide.

4.5–5.5 mm, tan to dark brown;

pappi 12–25 mm.

3.5–6.5 mm; light to dark brown;

pappi 10–25 mm.

few–many.

1–many.