Flora of North America species comparison

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

erect, usually with 1+ ascending branches from basal rosette, 30–60 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.

1–12 × 0.2–1.7 cm;

petiole 0–1 cm, distal ones sessile;

blade lanceolate to narrowly ovate, base cuneate to truncate, basal and proximal cauline often attenuate, margins denticulate, 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 1.2–2 mm;

sepals 1–2.5 mm;

petals yellow, with 1 or 2 red dots basally, 1.5–3.5(–4.5) mm; episepalous filaments 0.8–1.5 mm, epipetalous filaments 0.5–0.9 mm, anthers 0.4–0.5 mm, less than 5% of pollen grains 4- or 5-pored;

style 2–3.5 mm, stigma surrounded by 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.

straight or 1-coiled spiral, subterete in living material, 4-angled when dry, 13–25 × 1.1–1.2 mm.

1.2–1.3 mm.

0.7–1.1 mm.

= 14.

= 28.