Flora of North America species comparison

petioles 1–6 mm;

blades usually elliptic, lanceolate, lance-ovate, ovate, or suborbiculate, sometimes linear, 4–8(–15) × 1–10(–12) mm, margins entire, irregularly and sparsely serrate, or serrate-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.

10–45(–80) mm.

5–60 mm.

campanulate.

campanulate.

0.

6–14;

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

45–60;

corollas yellow, tubes 1–1.6 mm, throats tubular to subfunnelform, 1.6–2.2 mm, lobes 0.4–0.7 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.

14–20, lanceolate to suboblanceolate, 5–6 × 1.3–1.9 mm.

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

borne singly or (2–3) in loose, corymbiform arrays, 6–9(–10) × 5–6(–8) mm.

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

narrowly oblanceolate to suboblanceolate, 2.5–3 mm, margins thin-calloused, short-hairy;

pappi 0, or of single bristles.

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.