Flora of North America species comparison

multiple, erect or decumbent, straight;

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

blade 18.8–62.7 × 11–36 mm, widest intersinus distance 8.9–28.8 mm;

proximal broadly elliptic to obovate, margins dentate to serrate, teeth 8–12, slightly antrorse or perpendicular to leaf axis, 1–4 × 1.7–6 mm;

distal ovate or obovate, base not clasping, margins dentate to serrate, teeth 6–12, slightly antrorse or perpendicular to leaf axis, 1–3.5 mm;

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

persisting;

petiole present or absent;

blade linear-lanceolate to linear, margins usually irregularly deeply lobed, lobes pointed.

petiole absent;

blade ovate-lanceolate to linear, to 15(–22) cm, margins few-lobed or entire.

green, ovate to ovate-lanceolate, 2.9–8.2 × 1.1–1.9 mm, width 1/8–1/2 length, not concealing capsule, margins entire.

margins entire.

sepals 2–6 mm;

petals yellow to orange proximally, yellow distally, 3–8 mm, apex rounded or acute apex;

stamens 20–40, 2–7 mm, filaments monomorphic, filiform, unlobed;

styles 2–6 mm.

petals golden yellow, 6.7–9.5(–12.6) × 2.3–5.8 mm, apex rounded, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 5.4–9.2(–11) × 1.3–2.7 mm, with anthers, second whorl with anthers;

anthers twisted after dehiscence, epidermis smooth;

styles 4.1–6.8(–9) mm.

clavate, 11–31 × 1.5–3 mm, axillary curved to 250° at maturity, usually inconspicuously longitudinally ribbed.

cup-shaped, 5–9.8 × 5–8 mm, base rounded, not longitudinally ridged.

15–50, in 2+ rows distal to mid fruit, tan, usually not, occasionally sparsely, dark-mottled, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface colliculate under 10x magnification; recurved flap over hilum absent;

seed coat cell outer periclinal wall domed, domes on seed edges less than 1/2 as tall as wide at maturity.

coat anticlinal cell walls straight, papillae 3–5 per cell.

= 36.

= 20, 22.