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;

blade lanceolate, to 12 cm;

margins shallowly lobed, lobes rounded.

petioles usually present, rarely absent;

blade broadly ovate to lanceolate, to 12 cm, base not cordate-clasping, margins dentate to serrate.

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 white to pale yellow, obovate, 10–30(–50) mm, apex mucronate;

stamens 7–17 mm, less than 1/2 petal length, all fertile, none petaloid (flowers appearing to have 5 petals);

filaments ± monomorphic, linear, distally 2-lobed, lobes 0.6–2.5 mm;

anther stalk usually shorter than filament lobes;

style 10–15 mm.

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

cylindric to ovoid, 9–18(–23) × 5–8 mm, proximal nodding, distal erect.

2.3–4 mm;

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

constricted and grooved at middle;

seed coat anticlinal cell walls straight to slightly wavy, conspicuous.

= 22.

= 20.