Flora of North America species comparison

persisting;

petiole present or absent;

blade linear-lanceolate to linear, margins usually irregularly deeply lobed, lobes pointed.

petioles present;

blade oblanceolate to lanceolate, to 10 cm;

margins shallowly lobed, lobes rounded.

petiole absent;

blade ovate-lanceolate to linear, to 15(–22) cm, margins few-lobed or entire.

petioles usually present, rarely absent;

blade broadly ovate to lanceolate, to 10 cm, base not cordate-clasping, margins dentate to serrate.

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.

green, inconspicuous, not concealing pedicel, ovary, or capsule.

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 pale yellow to white, lanceolate to oblanceolate, 6–12 mm, apex acute;

stamens 3–12 mm (fertile 3–8 mm), 1/2 to ± equal petal length, 1–3(–5) outermost staminodial and petaloid (flowers appearing to have 6–8(–10) petals);

filaments heteromorphic, 1–3(–5) outermost oblanceolate, inner linear, all unlobed;

style 5–6.5 mm.

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

cylindric to ovoid, 9–13 × 5–7 mm, proximal nodding, distal erect.

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.

constricted and grooved at middle;

seed coat anticlinal cell walls straight, obscure.

= 36.

= 20.