Flora of North America species comparison

5–60 cm.

6–60 cm.

blade lateral lobes usually poorly developed or absent, terminal lobe lanceolate, to 5 × 2.8 cm, margins irregularly serrate-dentate.

blade lateral lobes usually present, but often poorly developed, sometimes absent, terminal lobe ovate to cordate, to 8 × 4.5 cm, margins dentate.

usually opening at sunset;

buds usually without free tips, sometimes with apical free tips less than 1 mm;

floral tube orange-brown inside, 3.5–6 mm;

petals bright yellow, sometimes red-dotted in proximal 1/2, fading pale orange, 3.5–7 mm.

opening at sunset;

buds usually with conspicuous, subapical free tips;

floral tube orange-brown inside, 3–5.5 mm;

petals white, often fading purple, 3.5–7.5 mm.

= 14.

= 14.