Flora of North America species comparison

solitary, erect, straight;

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

solitary, erect, straight;

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

blade 32.8–112.2 × 2.9–11.4 mm, widest intersinus distance 1–2.9 mm;

proximal oblanceolate to elliptic, margins pinnate, lobes 18–24, perpendicular to leaf axis, 0.8–4 mm;

distal elliptic to lanceolate, base not clasping, margins pinnate, lobes 6–16, perpendicular to leaf axis, 1–5.1 mm;

abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with needlelike and occasionally simple grappling-hook trichomes.

margins pinnate.

margins entire.

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 light to golden yellow, 9–14.7 × 3.1–6.4 mm, apex rounded, glabrous abaxially;

stamens light to golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 6.3–11.5 × 2.4–4.9 mm, with anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 4.6–9.9 mm.

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

cup-shaped, 8.2–12.7 × 5.1–7.7 mm, base tapering to rounded, not longitudinally ridged.

2.3–4 mm;

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

coat anticlinal cell walls sinuous, papillae 12–21 per cell.

= 22.

= 18.