Flora of North America species comparison

scapiform, erect, leafless and ebracteate, glabrous or minutely glandular-villous especially proximal to heads.

1–5+, usually decumbent proximally, ascending and branched distally, glabrous, eglandular.

basal;

petioles usually broadly or narrowly winged;

blades linear to lanceolate or oblanceolate, 6–24 cm, margins entire or remotely toothed to pinnately lobed, lobes usually entire and acute, apices acute to obtuse, faces usually glabrous, sometimes sparingly villous (glandular or eglandular, often glaucous).

basal and cauline;

petiolate;

blades narrowly oblanceolate, apices acute, faces glabrous, eglandular;

basal 5–30 cm, margins denticulate to pinnately lobed, lobes broad and blunt or narrow, curving, and acute;

cauline becoming linear and reduced distally.

from basal rosettes.

terminal on leafy branches or in axils of cauline leaves and bracts (first sometimes scapiform from basal rosettes; usually glabrous, sometimes lightly glandular distally).

10–15 mm.

7–12 mm.

25–34;

corollas yellow to yellow-orange, abaxially often purplish-tinged, 15–25 mm.

25–60;

corollas yellow, 15–25 mm.

12–16, reflexed in fruit, linear-lanceolate, midveins obscure, apices acute.

8–16, reflexed in fruit, lanceolate, midveins obscure, apices acute, glabrous.

borne singly.

(2–)3–20+.

reddish brown, columnar, 2.5 mm, 10–15-ribbed;

pappi of ca. 10, outer scales 0.5–1 mm plus 25–45, barbellulate inner bristles 5–8 mm.

brown, columnar, 2–2.8 mm, 12–15-ribbed;

pappi of 10–16 outer scales 0.5–0.8 mm plus 14–20, scabrous inner bristles 4.5–6 mm.

= 60.

= 20.