Flora of North America species comparison

multiple, erect or decumbent, zigzag or straight;

branches distal or along entire stem, distal longest or all ± equal, antrorse, straight to upcurved; hairy.

blade 20–49(–57) × 4.2–19 mm, widest intersinus distance 1.1–5.3 mm;

proximal oblanceolate to elliptic, margins pinnate to pinnatisect, lobes 4–10, slightly antrorse, 0.7–7.6 mm;

distal linear to lanceolate, base not clasping, margins entire or pinnate, lobes 0–10, slightly antrorse, 1.9–7.8 mm;

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

persisting;

petiole present or absent;

blade lanceolate to linear, margins usually deeply to shallowly lobed, rarely entire.

petiole present or absent (proximal leaves), absent (distal leaves);

blade lanceolate to linear (proximal leaves), ovate-lanceolate to linear (distal leaves), to 13 cm, margins deeply to shallowly lobed or entire.

margins entire.

usually green with prominent white base conspicuously extending outwards from midvein, rarely green, usually obovate, rarely lanceolate, 5.9–9.2 × 1.7–5 mm, width 1/5–2/3 length, not concealing capsule, margins usually 3–7-lobed, lateral lobes usually prominent, rarely entire.

petals golden yellow, 10.6–17.9 × 5.1–9 mm, apex obtuse, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments oblanceolate, slightly clawed, 6.5–10.5 × 2–4.5 mm, with anthers, second whorl with anthers;

anthers twisted or straight after dehiscence, epidermis smooth;

styles 6–11.5 mm.

sepals 1–4;

petals orange proximally, yellow distally, 2–6(–8) mm, apex retuse or rounded;

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

styles 1.5–3.5(–6) mm.

cup-shaped to cylindric, 6–13.6 × 3.4–6 mm, base tapering to rounded, not longitudinally ridged.

cylindric or clavate, 6–17(–20) × 2–3 mm, axillary curved to 45° at maturity, usually inconspicuously longitudinally ribbed.

coat anticlinal cell walls straight, papillae 4–9 per cell.

15–35, in 2+ rows distal to mid fruit, tan, moderately to densely dark-mottled, 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.

= 22.

= 36.