Flora of North America species comparison

erect, with 1 or more ascending branches from near base, to 60 cm.

1–11 × 0.3–2.1 cm;

petiole 0–5 cm, distal ones 0–0.5 cm;

blade lanceolate to ovate, sometimes elliptic-ovate or ovate distally, base cordate to truncate, sometimes cuneate or attenuate, margins dentate, apex acute.

opening near sunrise;

floral tube 1–3 mm;

sepals 2.5–6 mm;

petals yellow, sometimes red-dotted near base, 2–9 mm, sometimes with a tooth arising from emarginate apex; episepalous filaments 1.2–6 mm, epipetalous filaments 0.5–3 mm, anthers 0.4–1 mm, less than 5% of pollen grains 4- or 5-pored;

style 2–8 mm, stigma surrounded by anthers at anthesis.

1–2-coiled spiral, subterete in living material, 4-angled when dry, 13–20(–25) × 0.7–0.9 mm.

1–1.2 mm.

= 14.