Flora of North America species comparison

solitary, erect, straight;

branches usually distal, occasionally along entire stem, distal usually longest, antrorse, straight; hairy.

blade 16.7–89 × 6.3–14.2(–20) mm, widest intersinus distance 3.1–9.7 mm;

proximal oblanceolate to elliptic, margins serrate to pinnate, teeth or lobes 10–24, slightly antrorse, 1.4–3.4 mm;

distal lanceolate, base usually not clasping, occasionally clasping, margins serrate to pinnate, teeth or lobes 8–14, slightly antrorse, 0.7–7 mm;

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

persisting;

petiole present or absent;

blade lanceolate to linear, margins deeply to shallowly lobed.

petiole absent;

blade ovate to linear, to 12 cm, margins deeply lobed to dentate.

green, ovate to lanceolate, 6.6–12.8 × 1.9–6.8 mm, width 1/5–2/3 length, not concealing capsule, margins 3–7-lobed.

margins usually entire, sometimes toothed.

sepals 3–13 mm;

petals red to orange proximally, orange to yellow distally, 8–22 mm, apex mucronate, rounded, or retuse;

stamens 20+, 4–11 mm, filaments monomorphic, filiform, unlobed;

styles 5–13 mm.

petals golden yellow, 11.7–15.8(–18) × 2–4.8 mm, apex acute, glabrous abaxially;

stamens golden yellow, 5 outermost not petaloid, filaments linear, not clawed, 10.2–13.2 × 0.6–1.6 mm, with anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 6.7–13 mm.

clavate, 12–35 × 2–4 mm, axillary curved to 90° at maturity, usually inconspicuously longitudinally ribbed.

usually cylindric, rarely cup-shaped, 10.4–25 × 5.5–8.3 mm, base tapering or rounded, not longitudinally ridged.

20–40, in 2+ rows distal to mid fruit, tan, dark-mottled or not, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface tuberculate under 10x magnification; recurved flap over hilum absent;

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

coat anticlinal cell walls straight, papillae 3–6 per cell.

= 18.

= 22.