Flora of North America species comparison

solitary, erect, straight;

branches mostly distal, proximal longer than distal, all usually extending to near the distal end of plant, antrorse, straight; hairy.

blade 22–115 × 2.8–10.9(–17.2) mm, widest intersinus distance 2.2–7(–9) mm;

proximal oblanceolate, elliptic, or lanceolate, margins dentate, teeth 10–24(–38), perpendicular to leaf axis, 0.5–4 mm;

distal elliptic to lanceolate, base not clasping, margins dentate, teeth 8–20, perpendicular to leaf axis, 0.3–5.6 mm;

abaxial surface with simple grappling-hook, complex grappling-hook, and usually with 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.

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, 8–14.4 × 2.1–3.9 mm, apex acute, hairy abaxially;

stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 5.5–11.1 × 1.2–2.9 mm, with anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis papillate;

styles 5.3–10 mm.

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

cylindric, 7–14.6 × 3.5–6.7 mm, base tapering, 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 to slightly wavy, papillae 4–10 per cell.

= 54.

= 20.