Flora of North America species comparison

1–25, usually purple-red-tinted proximally, sometimes throughout, often branched throughout, ± hairy.

3–10(–15), green throughout or purple-red-tinted proximally, branched distally, glabrous or ± sparsely hairy.

blades simple or lobed (lobes 3–19+), ± hairy, gland-dotted;

mid leaves lobed (lobes 5–11+, terminal lobes 0.3–1 mm wide).

blades simple or lobed (lobes 3–13), glabrous or sparsely hairy, gland-dotted;

mid leaves lobed (lobes 3–7, terminal lobes 1.5–2.3 mm wide).

2–12 cm, sparsely hairy.

(1–)2–4.5 cm, glabrous or ± hairy.

subhemispheric to campanulate to ± urceolate, 6–10 × 7–12.5 mm.

subhemispheric to campanulate, 8–11 × 12–15 mm.

8–13;

corollas yellow, 8.5–11 × 3–5.5 mm.

9–12;

corollas yellow, 10–16 × 4–6.5 mm.

50–150+;

corollas 2.6–4.1 mm.

50–125+;

corollas 3.5–4.2 mm.

in 2 series, unequal;

outer 8–13, basally connate 1/4–1/3 their lengths, obovate to oblanceolate, 3.5–5.2 mm, apices acuminate;

inner 8–13, obovate, 3.8–5.9 mm, apices acuminate to acute.

in 2 series, unequal;

outer 10–12, basally connate 1/4–1/2 their lengths (moderately to strongly keeled), ovate to lanceolate, 4.5–7 mm, apices acuminate to acute;

inner 13–18(–28), obovate, 4–6 mm, apices usually mucronate.

15–350+ per plant in paniculiform arrays.

10–85+ per plant, in paniculiform to corymbiform arrays.

narrowly obpyramidal, 1.7–2.5 mm;

pappi of 5–6 obovate, aristate scales 1.6–2.3 mm.

obpyramidal to narrowly obpyramidal, 2.5–3.5 mm;

pappi of 5(–6) obovate, aristate scales (1.5–)2.1–2.8 mm.

= 22, 24, 28, 30.

= 30.