Flora of North America species comparison

solitary, erect, straight;

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

5–25 cm.

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.

petiole absent;

blade ovate or obovate, to 45 × 35 mm, intersinus distance 2–4 mm.

margins pinnate.

0(–1.5) mm.

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, narrowly spatulate to obovate, 4.5–17 × 1.2–5 mm, apex rounded;

stamens 25–45, 7–21 mm;

styles 7–18 mm.

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

3–7 × 3–4.5 mm.

2.3–4 mm;

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

3–9 per capsule, edges prominently to inconspicuously ridged.

= 22.

= 28.