Flora of North America species comparison

1–5(–15), usually purple-red-tinted proximally, branched distally, glabrous or ± hairy.

1–10, green throughout to purple-red-tinted proximally or distally to purple-red-tinted throughout, usually unbranched distally, ± hairy.

blades simple or lobed (lobes 3), glabrous, gland-dotted;

mid leaves simple or lobed (lobes 3, terminal lobes 2–4 mm wide).

blades simple or lobed (lobes 3–15), ± hairy, gland-dotted (basal leaf bases, sparsely, if at all, long-villous-woolly);

mid leaves simple or lobed (lobes 3–7, terminal lobes 1–2.5 mm wide).

1–3.2 cm, glabrous or ± hairy.

1–10 cm, ± hairy, tomentose distally near involucres.

campanulate to urceolate, 6–8 × 6–7 mm.

hemispheric to subglobose, 15–25 × 18–30 mm.

6–8;

corollas yellow, 4.5–8 × 2.5–5 mm.

15–34(–44);

corollas yellow, 16–30 × 4–8 mm.

25–50+;

corollas 2.7–3.2 mm.

150–400+;

corollas 5–6 mm.

in 2 series, unequal;

outer 7–9, basally connate 1/4–1/3 their lengths, lanceolate, 4.5–6 mm, apices usually rounded;

inner 7–11, obovate, 3.5–4.5 mm, apices mucronate.

in 2–3 series, subequal;

outer 16–24, basally connate 1/5–1/4 their lengths, lanceolate, 9–15 mm, apices acute;

inner 16–24+, lanceolate to oblanceolate, 8–12 mm, apices acuminate to acute.

50–250+ per plant, in corymbiform arrays.

1–10 per plant, usually borne singly.

narrowly obpyramidal, 2–3 mm;

pappi usually of 5 obovate, sometimes aristate, scales 0.9–1.8 mm.

obpyramidal to narrowly obpyramidal, 3.3–3.7 mm;

pappi of 5–7 lanceolate, aristate scales 4.5–5.3 mm.

= 30.

= 30.