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 10–25(–40) mm;

blades usually deeply divided, 5–30 × 7–25 mm, lobes 3, relatively broad to linear, usually secondarily lobed, cleft, or parted, often ± cruciform, sometimes almost entire.

5–25 mm.

4–25 mm.

campanulate.

campanulate.

6–10;

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

0, or 4–8;

corollas yellow, laminae oblong, 3.6–4.8 × 1.2–2.2 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.

40–50;

corollas yellow, tubes 1.5–1.6 mm, throats subtubular to narrowly funnelform, 1.5–2 mm, lobes 0.6–0.8 mm.

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

13–16(–22), sublanceolate, 3.4–4 × 0.7–1.1(–1.8) mm.

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

usually in corymbiform arrays, sometimes borne singly, 6–7.5 × 4.5–6 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.

oblanceolate, 1.8–2.3(–2.7) mm, margins thin-calloused, short-hairy;

pappi of 2–3(–6) bristles 1.8–2.5 mm (at least the longer), often plus minute, hyaline scales.

= 34.