Flora of North America species comparison

solitary, erect, straight;

branches distal or along entire stem, distal or proximal longest, antrorse, straight; hairy.

blade 52–112 × (5.4–)8.3–25 mm, widest intersinus distance 1.4–4 mm;

proximal oblanceolate or elliptic, margins pinnatisect, lobes 8–20, slightly antrorse, 4.2–7.4(–10.7) mm;

distal oblanceolate, elliptic, or lanceolate, base not clasping, margins usually pinnatisect, sometimes pinnate, especially near apex, lobes 8–18, slightly antrorse, 3–10.8 mm;

abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with 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, 14–23.8(–26) × 3.8–7.4 mm, apex acute to rounded, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate to elliptic, slightly clawed, 12–20.4 × 2.5–4.9 mm, usually without, rarely with, anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 9.2–17.7 mm.

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

cylindric, 12–20.2 × 4.5–8.1 mm, base tapering, 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 sinuous, papillae 5–14 per cell.

= 36.

= 20.