Flora of North America species comparison

solitary, erect, straight;

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

blade 35–112 × 4.3–27.1 mm, widest intersinus distance 2.3–15.3 mm, always on some leaves 4+ mm;

proximal oblanceolate to elliptic, margins dentate to pinnate, teeth or lobes 12–30(–50), perpendicular to leaf axis or antrorse, 1–9 mm;

distal lanceolate, base not clasping, margins serrate to pinnate, teeth or lobes 8–28, perpendicular to slightly antrorse, 0.8–7.5 mm;

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

persisting;

petiole present or absent;

blade linear-lanceolate, margins deeply to shallowly lobed.

petiole absent;

blade ovate-lanceolate to lanceolate, to 17 cm, margins usually deeply lobed to dentate, rarely entire.

usually green with prominent white base usually conspicuously extending outwards from midvein, rarely green, usually ovate, rarely lanceolate, 3.3–6.2 × 1.5–3.2 mm, width 1/4–7/8 length, not concealing capsule, margins usually 3–7-lobed, rarely entire.

margins entire or toothed to pinnate.

sepals 2–5 mm;

petals red to orange proximally, orange to yellow distally, 4–7(–10) mm, apex retuse;

stamens 20+, 3–7 mm, filaments monomorphic, filiform, unlobed;

styles (3–)3.5–6 mm.

petals golden yellow, 11.3–20.4 × 2.9–7.2[–8.9] mm, apex acute to rounded, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 10.4–17.8 × 1.9–5.2[–5.6] mm, with or without anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles (5.4–)8.5–10.9(–13) mm.

clavate, 8–28 × 2–4 mm, axillary curved to 70° at maturity, usually inconspicuously longitudinally ribbed.

cup-shaped to cylindric, [7.6–]9.1–16.4 × 5.7–9.2 mm, length usually to 2 times diam., sometimes a few more, base tapering to rounded, not longitudinally ridged.

15–35, in 2+ rows distal to mid fruit, tan, 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 or equal to 1/2 as tall as wide at maturity.

coat anticlinal cell walls straight or sinuous, papillae 4–106 per cell.

= 54.