Flora of North America species comparison

solitary, erect, straight;

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

blade 32.8–112.2 × 2.9–11.4 mm, widest intersinus distance 1–2.9 mm;

proximal oblanceolate to elliptic, margins pinnate, lobes 18–24, perpendicular to leaf axis, 0.8–4 mm;

distal elliptic to lanceolate, base not clasping, margins pinnate, lobes 6–16, perpendicular to leaf axis, 1–5.1 mm;

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

persisting or not.

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

blade lanceolate to linear (proximal leaves), ovate to linear (distal leaves), to 10(–14) cm, margins dentate or entire (proximal leaves), entire (distal leaves).

green, ovate to elliptic, 4.3–8.3 × 1.9–3.2 mm, width 1/3–2/3 length, not concealing capsule, margins entire.

margins entire.

sepals 4–10 mm;

petals orange proximally, yellow distally, 10–20 mm, apex rounded to retuse;

stamens 20+, 4–13 mm, filaments monomorphic, filiform, unlobed;

styles 6–14 mm.

petals light to golden yellow, 9–14.7 × 3.1–6.4 mm, apex rounded, glabrous abaxially;

stamens light to golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 6.3–11.5 × 2.4–4.9 mm, with anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 4.6–9.9 mm.

narrow-cylindric, 8–35 × 2.5–4 mm, axillary curved to 45° at maturity, often prominently longitudinally ribbed.

cup-shaped, 8.2–12.7 × 5.1–7.7 mm, base tapering to rounded, not longitudinally ridged.

10–20, in 1 row distal to mid fruit, tan, dark-mottled or not, triangular prisms, surface ±smooth to minutely tessellate under 10x magnification; recurved flap over hilum absent;

seed coat cell outer periclinal wall flat to slightly convex.

coat anticlinal cell walls sinuous, papillae 12–21 per cell.

= 72.

= 18.