Flora of North America species comparison

multiple, erect or decumbent, zigzag or straight;

branches distal or along entire stem, distal longest or all ± equal, antrorse, straight to upcurved; hairy.

multiple, erect, zigzag or straight;

branches distal or along entire stem, distal longest or all ± equal, antrorse, upcurved; hairy.

blade 20–49(–57) × 4.2–19 mm, widest intersinus distance 1.1–5.3 mm;

proximal oblanceolate to elliptic, margins pinnate to pinnatisect, lobes 4–10, slightly antrorse, 0.7–7.6 mm;

distal linear to lanceolate, base not clasping, margins entire or pinnate, lobes 0–10, slightly antrorse, 1.9–7.8 mm;

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

blade 17–94 × 12–32 mm, widest intersinus distance 9.5–29 mm;

proximal broadly spatulate to elliptic, margins serrate, teeth 6–12, slightly antrorse or perpendicular to leaf axis, 0.4–1.5 mm;

distal broadly spatulate, elliptic, or obovate, base not clasping, margins serrate, teeth 8–10, slightly antrorse or perpendicular to leaf axis, 1–3.6 mm;

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

margins entire.

margins entire.

petals golden yellow, 10.6–17.9 × 5.1–9 mm, apex obtuse, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments oblanceolate, slightly clawed, 6.5–10.5 × 2–4.5 mm, with anthers, second whorl with anthers;

anthers twisted or straight after dehiscence, epidermis smooth;

styles 6–11.5 mm.

petals white to light yellow, 9.4–17.4(–20) × 1.7–4.3 mm, apex acute to rounded, glabrous abaxially;

stamens white to light yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 8.5–18 × 1–1.3(–2.9) mm, without anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis papillate;

styles 5.8–9 mm.

cup-shaped to cylindric, 6–13.6 × 3.4–6 mm, base tapering to rounded, not longitudinally ridged.

cup-shaped, 4.9–10.3 × 4.6–8.6 mm, base rounded, not longitudinally ridged.

coat anticlinal cell walls straight, papillae 4–9 per cell.

coat anticlinal cell walls straight to slightly wavy, papillae 8–14 per cell.

= 22.