Flora of North America species comparison

solitary, erect, straight;

branches distal, distal longest, antrorse, straight, hairy.

blade 13.8–78 × 3.8–20 mm, widest intersinus distance 2.5–15.8 mm;

proximal oblanceolate to elliptic, margins entire or serrate to pinnate, teeth or lobes (0–)8–14(–22), slightly antrorse, 0.3–5.3 mm;

distal elliptic to lanceolate, base usually clasping, rarely a few not clasping, margins usually serrate to pinnate, occasionally entire, teeth or lobes (0–)6–18, slightly antrorse, 2.8–4.3(–6.1) mm;

abaxial surface with simple grappling-hook, occasionally complex grappling-hook, and rarely needlelike trichomes, adaxial surface occasionally with simple grappling-hook and 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 usually entire, rarely pinnate.

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, 6.4–17(–20) × 2–5.3 mm, apex usually acute, occasionally rounded, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments linear to oblanceolate, slightly clawed, 6.2–14.2(–17.5) × 1–3.9 mm, usually without, rarely with, anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 6–11 mm.

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

cup-shaped, 7.3–13.7 × 5.5–9.8 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 5–18 per cell.

= 36.

= 22.