OregonFlora species comparison

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

1+; erect to lax, glabrous or pubescent; simple or branched.

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.

basal and/or cauline, alternate; ovate, deltate, oblanceolate, lanceolate, linear, or filiform, rarely orbiculate, sometimes palmately or pinnately lobed, ultimate margins entire to serrate or toothed; some with callous denticles on the teeth, palmately to pinnately veined;

surfaces glabrous or hairy, often glabrate with age, petiolate or sessile, often clasping.

corymb-like arrays;

bracts 0 or inconspicuous.

corymb-, cyme-, panicle-, raceme-like, or flat-topped arrays, rarely heads solitary, usually terminal, sometimes from axils of distal leaves.

urn-shaped.

mostly cylindric or turbinate, sometimes campanulate.

flat to convex;

paleae 0.

5, rarely 0;

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

(0)5, 8, 13, or 21, pistillate, fertile;

rays yellow, rarely yellowish white.

35–45.

(5)13–100+; bisexual, fertile;

corollas yellow, rarely yellowish white; reddish, or purplish;

tubes ? campanulate throats;

lobes 5; erect to recurved, usually ± deltate;

style branches with tips usually truncate-penicillate.

(8)13 or 21;

tips usually black, sometimes green.

5, 8, 13, or 21 in 1(2) equal or subequal series, persistent.

1–5+, inconspicuous, usually < 2 mm.

0 or 1–8+ bractlets, mostly ¼–½ the length of phyllaries.

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

cylindric or prismatic, tan to brown, glabrous or pubescent, usually 5-ribbed, pappi of white to straw-colored, barbellate to smooth bristles.

6–15(30+).

radiate or discoid, sometimes nodding.

=40, 80.