Flora of North America species comparison

5–25 cm.

multiple, erect or decumbent, zigzag;

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

petiole absent;

blade ovate or obovate, to 45 × 35 mm, intersinus distance 2–4 mm.

blade 16–31 × 3.9–9.2 mm, widest intersinus distance 3–-8.3 mm;

proximal oblanceolate to elliptic, margins entire or dentate, teeth 0–4(–6), perpendicular to leaf axis, 0.2–1.3 mm;

distal oblanceolate to elliptic, base not clasping, margins entire or dentate, teeth 0–4, perpendicular to leaf axis, 0.4–2 mm;

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

margins entire.

0(–1.5) mm.

petals yellow to orange, narrowly spatulate to obovate, 4.5–17 × 1.2–5 mm, apex rounded;

stamens 25–45, 7–21 mm;

styles 7–18 mm.

petals white, 9–15 × 1.8–2.4 mm, apex rounded to acute, glabrous abaxially;

stamens white, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 7.1–13 × 0.5–1.4 mm, with anthers, second whorl with anthers;

anthers twisted or straight after dehiscence, epidermis papillate;

styles 4.8–-7.3 mm.

3–7 × 3–4.5 mm.

cup-shaped, 4.5–8(–13) × 4.5–7 mm, base rounded, not longitudinally ridged.

3–9 per capsule, edges prominently to inconspicuously ridged.

coat anticlinal cell walls straight, papillae usually 6–9 per cell.

= 28.