Flora of North America species comparison

± branched, branches notably thickened distally.

1–30(–40), erect, unbranched.

all basal, new leaves tightly clustered;

blades (midribs usually pronounced) spatulate or oblanceolate to linear-oblanceolate, entire, glabrous or usually sparsely, sometimes moderately to densely, hairy, densely gland-dotted.

(0.5–)2–15 cm, ± hairy proximally, almost always densely lanate distally.

10–12 × 12–15 mm.

7–14;

corollas 11–17 mm.

25–150+;

corollas yellow, 4–4.7 mm.

4–8, 6–8.5 mm, margins (0.3–)0.5–1.2 mm wide, usually conspicuously scarious, abaxial faces ± hairy.

1–10(–40) per plant, borne singly.

3–4 mm;

pappi of 5–7 obovate to oblanceolate, aristate scales 3–4(–4.5) mm.