Flora of North America species comparison

petioles 2–15 mm;

blades deltate-ovate to ovate-rhombic, 6–23 × 5–24 mm, margins usually entire or serrate to serrate-crenate, sometimes shallow-lobed.

petioles 3–10 mm;

blades subdeltate, suborbiculate, or subovate, 3–14 × 3–15 mm, margins usually 2–5-lobed or serrate, sometimes subentire or 3-lobed.

5–25 mm.

5–60 mm.

campanulate.

campanulate.

6–10;

corollas white, sometimes pink tinged, laminae broadly oblong to oblong-elliptic, 3–7 × 1.5–3 mm.

6–14;

corollas yellow, laminae 3–6 × 1.2–3 mm.

30–40;

corollas yellow, often purple tinged, tubes 0.8–1 mm, throats tubular to tubular-funnelform, 1.2–1.4 mm, lobes 0.3–0.4 mm.

60–80;

corollas yellow, tubes 1.2–1.5 mm, throats tubular to subfunnelform, 2.4–3 mm, lobes 0.4–0.6 mm.

13–20, linear-lanceolate to narrow-ovate, 4–5.5 × 1–2 mm.

14–22, lanceolate to broadly oblanceolate, 5–6 × 1–2 mm.

in corymbiform arrays, 5–7 × 5.5–7 mm.

borne singly or in corymbiform arrays, 7–8 × 5–9 mm.

linear-oblong to oblanceolate, 2–2.8 mm, margins prominently calloused, long-ciliate;

pappi of 2(–3+) barbellulate bristles 1.5–2.5 mm plus crowns of hyaline, laciniate scales.

narrowly oblanceolate, 2–3.5 mm, margins thin-calloused, short-hairy;

pappi of single, ± stout bristles 2.5–4 mm plus crowns of vestigial, hyaline scales.

= 34.

= 34.