Flora of North America species comparison

arising from base, usually decumbent, rarely with only 1, erect stem, 10–55 cm.

prostrate, decumbent, or ascending from base, to 60(–130) cm.

1.5–7 × 0.3–1.3 cm;

petiole (0–)0.2–2.5 cm, petiolate distally;

blade narrowly lanceolate, lanceolate, or narrowly elliptic, base attenuate, margins serrulate, apex acute.

0.5–5 × 0.3–2.2 cm;

petiole 0–1.5(–2.5) cm, distal ones to 1 cm;

blade narrowly ovate, base attenuate, cuneate, or cordate, margins sparsely serrulate, apex acute.

opening near sunrise;

floral tube (1.1–)1.8–3 mm;

sepals 2.6–5.5 mm;

petals yellow, sometimes red-dotted near base, (3–)4–8 mm; episepalous filaments (1.2–)2.5–3.6 mm, epipetalous filaments (1–)1.3–2 mm, anthers (0.6–)0.8–1.6 mm, less than 5% of pollen grains 4- or 5-pored;

style (3–)4.5–7 mm, stigma surrounded by anthers at anthesis.

opening near sunrise;

floral tube 2.1–8.5 mm;

sepals 4–11.5 mm;

petals yellow, often red-dotted near base, 6–20 mm; episepalous filaments 2.8–8 mm, epipetalous filaments 1.5–6 mm, anthers 1–3 mm, less than 5% of pollen grains 4- or 5-pored;

style 6–23 mm, stigma surrounded by or exserted beyond anthers at anthesis.

very slender, usually much contorted, irregularly to 5-coiled, rarely simply flexuous, terete in living material, 4-angled when dry, 20–30 × 0.8–1 mm.

often coiled in 1–2 spirals, 4-angled, 10–25 × 2–2.5 mm.

1.2–1.3 mm.

1.2–1.3 mm.

= 14.