Flora of North America species comparison

cylindrical, slender, 0.8–1.5 mm diam.

absent (caudex usually with slender, rarely stout, rhizomelike branches).

prostrate to decumbent or erect, unbranched or branched, 0.5–4(–6) dm.

erect to ascending, branched (several), 0.1–0.8(–1.4) dm, glabrous.

rosulate, simple, (0.6–)1.2–5(–7) cm;

petiole (3–)1–3.5(–5.5) cm;

blade usually ovate to oblong, rarely oblanceolate to obovate, (0.4–)0.8–1.7(–2.5) cm × (2–)5–10(–16) mm, base cuneate to obtuse, margins usually entire, rarely repand or obtusely small-toothed (apex obtuse).

absent.

3–10, usually simple, rarely 3 or 5-foliolate, petiolate;

petiolulate or sessile;

petiole 0.4–2.5 cm, base not auriculate;

lateral leaflets (when present) sessile or petiolulate (to 0.2 cm), blade similar to terminal, considerably smaller;

terminal leaflet blade orbicular to reniform or ovate to oblong, 0.4–3 cm × 3–20 mm, (somewhat fleshy), base subcordate to rounded or subtruncate, margins entire or repand, rarely undulate, (apex rounded).

0 or 1 (or 2), simple, shortly petiolate;

petiole base not auriculate;

blade similar to basal leaves, much smaller.

ebracteate.

ebracteate.

sepals ovate, 0.7–1.2 × 0.5–0.7 mm, lateral pair not saccate basally;

petals absent or rudimentary, to 0.7 mm;

filaments 0.5–0.8 mm;

anthers ovate, 0.1–0.2 mm.

sepals oblong, 2–3(–4) × 0.8–1.5(–2) mm, lateral pair not saccate basally;

petals white, oblanceolate, 4–5.5(–7) × 1.3–2(–2.5) mm (not clawed, apex rounded or emarginate);

filaments: median pairs 2.5–4 mm, lateral pair 2–3 mm;

anthers oblong, 0.5–0.9 mm.

divaricate-ascending to spreading, 0.5–2(–4) mm.

ascending to erect, 3–6(–8) mm.

narrowly oblong to linear, (3–)5–10(–15) × 0.8–1.2 mm;

ovules 6–22 per ovary;

style 0.2–0.5(–1) mm.

linear, (0.8–)1.3–2.8(–3.7) cm × 1.3–2 mm;

ovules 8–18 per ovary;

style 0.5–3 mm.

light or yellowish brown, oblong or ovoid, 1–1.4 × 0.7–1 mm.

brown, oblong, 1.5–2 × 0.9–1.2 mm.

= 16.