Flora of North America species comparison

persisting;

petiole present or absent;

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

petioles present or absent;

blade lanceolate, to 10(–16) cm;

margins shallowly to deeply lobed, lobes acute.

petiole absent;

blade ovate-lanceolate to linear, to 15 cm, margins deeply to shallowly lobed or entire.

petioles absent;

blade ovate to lanceolate, to 10(–16) cm, base often cordate-clasping, margins deeply to shallowly lobed, lobes acute.

green, lanceolate, 4.5–8.3 × 1.2–3.6 mm, width 1/5–1/2 length, not concealing capsule, margins entire.

white with green margins, conspicuous, concealing pedicel, ovary, and capsule.

sepals 3–8 mm;

petals yellow to orange proximally, yellow distally, (7–)8–18 mm, apex rounded or acute apex;

stamens 20+, 3–8 mm, filaments monomorphic, filiform, unlobed;

styles 4–8 mm.

petals white to pale yellow, usually with orange veins, obovate, 13–65 mm, apex mucronate;

stamens 4–26 mm, less than 1/2 petal length, all fertile, none petaloid (flowers appearing to have 5 petals);

filaments ± monomorphic, linear, distally 2-lobed, lobes 0.5–2 mm;

anther stalk shorter or longer than filament lobes;

style 8–30 mm.

clavate, 13–26 × 2–3.5 mm, axillary curved to 180° at maturity, usually inconspicuously longitudinally ribbed.

cylindric to cup-shaped, 14–25(–30) × 5–10 mm, erect.

15–40, in 2+ rows distal to mid fruit, tan, usually dark-mottled, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface colliculate under 10x magnification; recurved flap over hilum usually present;

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

usually constricted proximal to middle;

seed coat anticlinal cell walls wavy.

= 18.

= 18.