Flora of North America species comparison

solitary, erect, straight;

branches distal or along entire stem, proximal or distal longest, antrorse, straight to upcurved; hairy.

blade 72–295 × 14–45 mm, widest intersinus distance 10.1–23.3 mm;

proximal oblanceolate or elliptic, margins serrate to pinnate, teeth or lobes 16–26, slightly antrorse, 1–16.5 mm;

distal elliptic to lanceolate, base clasping or not, margins serrate to pinnate, teeth or lobes 9–20, slightly antrorse, 5.3–13.7 mm;

surfaces with needlelike trichomes.

petioles present or absent;

blade oblanceolate, to 11 cm;

margins shallowly lobed, lobes rounded.

petioles absent;

blade ovate to lanceolate, to 11 cm, base often cordate-clasping, margins deeply to shallowly lobed, lobes acute.

margins pinnate.

green, inconspicuous, not concealing pedicel, ovary, or capsule.

petals white, 47–75 × 13–22.7 mm, apex acute to attenuate, glabrous abaxially;

stamens white to yellow, 5 outermost petaloid, filaments spatulate, strongly clawed, 48–75 × 12–23 mm, without anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 36–53 mm.

petals yellow to orange, obovate, 12–31 mm, apex mucronate;

stamens 4–12 mm, less than 1/2 petal length, all fertile, none petaloid (flowers appearing to have 5 petals);

filaments ±monomorphic, linear, most or all distally 2-lobed, lobes to 0.3 mm;

anther stalk longer than filament lobes;

style 6–15 mm.

cylindric, 30–43 × 12–17 mm, base tapering, not longitudinally ridged.

cylindric to cup-shaped, 13–25 × 5–8 mm, erect.

2.3–4 mm;

coat anticlinal cell walls straight, papillae 4–10 per cell.

widest at middle, not grooved;

seed coat anticlinal cell walls deeply wavy.

= 22.