Flora of North America species comparison

simple or distally branched.

simple or distally branched.

petioles 50–80(–200+) mm, expanding into obovate to spatulate blades 50–80(–120+) × 15–25(–35+) mm, margins not lobed, usually toothed, rarely entire.

petioles 10–30(–120) mm, expanding into obovate to spatulate blades 12–35(–50+) × 8–20(–30) mm, margins usually pinnately lobed (lobes 3–7+) and/or irregularly toothed.

petiolate or sessile;

blades oblanceolate to lanceolate or linear, 50–120+ × 8–22+ mm, margins of mid-stem leaves usually entire proximally, regularly serrate distally.

petiolate or sessile;

blades oblanceolate or spatulate to lanceolate or linear, 30–80+ × 2–15+ mm, margins of mid-stem leaves usually irregularly toothed proximally and distally.

18–28+ mm diam.

12–20+ mm diam.

21–34+;

laminae 20–30(–40+) mm.

usually 13–34+, rarely 0;

laminae 12–20(–35+) mm.

(the larger) 2–3 mm wide.

(the larger) 2–3 mm wide.

2–3(–4) mm, apices usually bare, rarely obscurely auriculate.

1.5–2.5 mm, apices usually coronate or auriculate.

= 90, 108.

= 18, 36, 54, 72, 90.