Flora of North America species comparison

erect to decumbent, to 30 cm.

multiple, erect or decumbent, zigzag;

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

petiole 10–65 mm;

blade hastate to ovate, usually basally lobed, sometimes unlobed, to 18 × 10 cm, base cuneate to truncate, margins serrate to crenate, apex acute.

blade 13.6–33.3 × 7.2–18.5 mm, widest intersinus distance 6.2–14.8 mm;

proximal elliptic, margins dentate, teeth 4–6, perpendicular to leaf axis, 0.5–0.6 × 1.2–1.5 mm;

distal oblanceolate to elliptic, base usually not clasping, rarely clasping, margins dentate to serrate, teeth 4–8, slightly antrorse or perpendicular to leaf axis, 0.6–2.5 mm;

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

margins entire or slightly toothed.

(fruiting) 1–3 × 2 mm (often appearing absent because thick and continuous with capsule).

petals orange or yellow, 5–15 × 3–7 mm, apex cuspidate, hairy abaxially at apex;

stamens 20–30, 5 mm, filaments heteromorphic, 5 outermost narrowly spatulate, inner filiform;

style 5 mm.

petals golden yellow, 7.7–14.8 × 2.7–5.9 mm, apex acute, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, strongly clawed, 6–11 × 1.9–5.2 mm, with anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 5.4–9.7 mm.

subcylindric to clavate, 9–30 × 3–3.5 mm, base tapering gradually, capsule and pedicel not well-differentiated.

cup-shaped, 4.2–8 × 4.9–7.6 mm, base rounded, not longitudinally ridged.

5–9 per capsule, pyriform to oblong, without transverse folds.

coat anticlinal cell walls straight, papillae 4–6 per cell.

= 20.