Flora of North America species comparison

± branched, branches notably thickened distally.

± branched, branches notably thickened distally.

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

(1–)5–20(–30), erect, leafy, ± branched distally.

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.

basal and cauline, entire, glabrous or sparsely to moderately lanuginose to sericeous, usually densely gland-dotted;

basal leaves tightly clustered, blades linear-oblanceolate;

proximal cauline blades linear-oblanceolate;

mid blades linear-oblanceolate to linear, 1.7–2 mm wide;

distal blades linear-oblanceolate to linear.

2–13.5 cm, usually densely hairy.

5–18.5 cm, ± hairy, usually densely hairy distally.

(5–)7–10 × 8–15 mm.

8–12 × 13–17 mm.

8–14;

corollas 11.8–17 mm.

7–10;

corollas 10–20 mm.

25–75(–100+);

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

(40–)80–150+;

corollas yellow, 3.3–4.5 mm.

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

7–12, 5–6.4 mm, margins 0–0.3(–0.4) mm wide, usually scarious, abaxial faces ± hairy.

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

(1–)5–30(–40) per plant (1–5 per stem), borne singly or in paniculiform to corymbiform arrays.

2.4–3.1 mm;

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

3–4.1 mm;

pappi of 5–7 lanceolate or obovate to oblanceolate, aristate scales 2.7–4.5 mm.

= 30, 60.

= 28, 30, 56, 60.