Flora of North America species comparison

solitary, erect, straight;

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

erect, to 70 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 to 25 mm (proximal leaves), absent (distal leaves);

blade usually lanceolate to hastate, rarely elliptic, basally lobed, sometime with 2 pairs of lobes, or unlobed, to 14 × 4.5 cm, base obliquely obtuse to acute, margins shallowly serrate, apex acute.

margins pinnate.

(fruiting) 0.5–0.8 × 1–2 mm (often appearing absent because thick and continuous with 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 orange, 5–7 × 2.3–4 mm, apex cuspidate, hairy on apex and abaxially near apex;

stamens 8–12, 4–5.3 mm, filaments heteromorphic, 5 outermost narrowly spatulate, inner filiform;

styles 3.8–5.5 mm.

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

clavate or funnelform, 12–27 × 3–5 mm, base tapering gradually, capsule and pedicel not well-differentiated.

2.3–4 mm;

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

8–12 per capsule, pyriform, without transverse folds.

= 22.

= 20.