Flora of North America species comparison

± branched, branches notably thickened distally.

± branched, branches notably thickened distally.

1–30(–40), erect, unbranched.

1–8(–12), erect, leafy, ± branched distally.

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.

basal and cauline, entire, usually densely strigoso-canescent, ± gland-dotted;

basal leaves tightly clustered, blades spatulate to oblanceolate;

proximal cauline blades oblanceolate;

mid blades oblanceolate to linear-oblanceolate, 2.5–5 mm wide;

distal blades linear-lanceolate to linear.

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

2–13.5 cm, usually densely hairy.

10–12 × 12–15 mm.

(5–)7–10 × 8–15 mm.

7–14;

corollas 11–17 mm.

8–14;

corollas 11.8–17 mm.

25–150+;

corollas yellow, 4–4.7 mm.

25–75(–100+);

corollas yellow proximally, yellow or rarely purplish distally, 2.8–3.8 mm.

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

8–11, 4–6.5 mm, margins 0–0.3 mm wide, usually scarious, abaxial faces densely hairy.

1–10(–40) per plant, borne singly.

1–10(–30) per plant (1–7 per stem), borne singly or in paniculiform to corymbiform arrays.

3–4 mm;

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

2.4–3.1 mm;

pappi of 5–6 obovate, aristate scales 2.1–3.5 mm.

= 30, 60.