OregonFlora species comparison

1, loosely arachnoid-tomentose, or villous, glabrate with age.

usually 1, rarely 2–3, glabrous or sparsely and unevenly tomentose.

mostly basal;

cauline progressively reduced distally; ± petiolate;

basal and lower cauline elliptic, lanceolate, linear, oblanceolate, rounded-deltate, rarely suborbiculate, bases tapered or truncate to cordate;

margins entire or dentate;

distal becoming sessile and bract-like.

evenly distributed along stems, oblanceolate to narrowly obovate or ovate, bases tapering;

margins lobulate to dentate, ultimate margins secondarily denticulate;

proximal petiolate;

distal sessile.

corymb-like arrays;

bracts 0 or inconspicuous.

loose corymb-like arrays;

bracts few, inconspicuous.

urn-shaped.

urceolate.

5, rarely 0;

rays 6–15(20) mm, yellow or white to pale yellow.

0.

35–45.

(30)55–65.

(8)13 or 21;

tips usually black, sometimes green.

21, 4–6 mm;

tips usually black.

1–5+, inconspicuous, usually < 2 mm.

2–4(6+) bractlets, 2–3 mm.

2.5–3 mm, usually glabrous, sometimes hairy along ribs.

2–2.5 mm, sparsely to densely pubescent, rarely glabrous.

6–15(30+).

8–20.

=40, 80.

=40.