OregonFlora species comparison

erect; leafless except for scaly bracteoles in inflorescences, branched, glabrous or proximally rough-hairy.

basal, oblanceolate, bases tapering and petiole-like;

margins irregularly dentate or lobed;

tips acute or obtuse;

surfaces glabrous or rough-hairy.

terminal, branched, with solitary heads, bracteate.

narrowly to broadly campanulate in flower; cylindrical to ovoid in fruit.

flat to convex;

paleae membranous.

bisexual;

ligules slightly to much exceeding involucres, white or yellow.

10–30 in 4–5 graduated series; erect, reflexed in fruit;

surfaces glabrous or midribs with stiff; sharp hairs.

tapering toward bases and tips or only toward bases, brown, finely roughened, glabrous;

ribs 10+, pappi of stiff, plumose bristles; tawny or dull white; shorter outer bristles barbed.

ligulate.