Flora of North America species comparison

± branched, branches notably thickened distally.

none.

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

1–10, erect or ± decumbent, leafy, unbranched or branched distally.

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.

basal and cauline, ± hairy, ± gland-dotted;

basal blades spatulate to oblanceolate, entire or with 2–6 teeth or lobes;

proximal cauline blades narrowly spatulate or oblanceolate to linear-oblanceolate, entire or with 2–6 teeth or lobes;

mid blades oblanceolate to linear-oblanceolate to linear, 0.9–9.5(–16) mm wide, entire or with 1–2 teeth or lobes;

distal blades narrowly oblanceolate to linear-oblanceolate to linear, entire or with 1–2 teeth or lobes.

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

8–29 cm, ± hairy.

8–12 × 13–17 mm.

5–10 × 7–15 mm.

7–10;

corollas 10–20 mm.

9–25;

corollas 8.2–16.8 mm.

(40–)80–150+;

corollas yellow, 3.3–4.5 mm.

50–200+;

corollas yellow, 1.6–3 mm.

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

8–21, 2.4–5.5 mm, margins 0–0.2 mm wide, not scarious or scarious, abaxial faces ± hairy.

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

8–50(–80) per plant, borne singly or in corymbiform arrays.

3–4.1 mm;

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

1.5–2.6 mm;

pappi of 4–8 obovate, often aristate scales 1–2.5 mm.

= 28, 30, 56, 60.