Flora of North America species comparison

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

1–5, green throughout or purple-red-tinted distally to throughout, usually unbranched distally, ± hairy (often tomentose proximally).

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).

blades usually simple, rarely lobed (lobes 3), glabrous or ± hairy, eglandular or sparsely gland-dotted (basal leaf bases ± long-villous-woolly);

mid leaves usually simple, rarely lobed (lobes 3, terminal lobes 1.5–3 mm wide).

(1–)2–4.5 cm, glabrous or ± hairy.

(1.5–)6–20(–29) cm, ± hairy, densely tomentose distally near involucres.

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

hemispheric to broadly campanulate, 13–20 × 23–32 mm.

9–12;

corollas yellow, 10–16 × 4–6.5 mm.

13–15;

corollas yellow, 13–26 × 5.4–9.5 mm.

50–125+;

corollas 3.5–4.2 mm.

100–250+;

corollas 5.7–7.4 mm.

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.

in 2 series, unequal;

outer 13–19, basally connate only slightly to 1/5 their lengths, lanceolate to narrowly lanceolate to obovate to oblanceolate, 7–11 mm, apices acuminate to acute;

inner 13–18, narrowly lanceolate to oblanceolate, 8.5–12.6 mm, apices aristate.

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

1–5 per plant, usually borne singly, sometimes in paniculiform arrays.

obpyramidal to narrowly obpyramidal, 2.5–3.5 mm;

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

narrowly obpyramidal, 4.2–4.7 mm;

pappi of 9–11(–15) obovate to oblanceolate, often aristate scales 4.7–7.3 mm.

= 30.

= 30.