Flora of North America species comparison

usually with decumbent lateral branches from basal rosette, 5–60 cm.

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

1–5(–11) × 0.2–0.7(–1.4) cm;

petiole 0–0.2(–0.4) cm, distal ones sessile;

blade lanceolate to narrowly ovate, base often cuneate to truncate, sometimes attenuate, margins sparsely denticulate, apex acute to obtuse.

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.

opening near sunrise;

floral tube 1–4.2 mm;

sepals (1.5–)2.5–8 mm;

petals yellow, sometimes with 1–3 red dots basally, (2–)3.5–13 mm; episepalous filaments (0.5–)1.5–6.5 mm, epipetalous filaments (0.2–)0.5–3.8 mm, anthers (0.4–)0.8–2.2 mm, less than 5% of pollen grains 4- or 5-pored;

style (2.1–)3–10.5 mm, stigma surrounded by at least anthers of longer stamens, often by both sets, at anthesis.

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.

usually 1–3-coiled spiral, subterete in living material, 4-angled when dry, 13–24 × 0.7–1.2 mm.

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.

1–1.5 mm.

1.2–1.3 mm.

= 14.