Flora of North America species comparison

absent.

absent.

erect, (angled, sometimes flexuous), unbranched basally, usually branched distally, (1.2–)2–6.5(–9) dm.

erect, ascending, or decumbent, unbranched or branched basally and/or distally, (0.3–)1–3.5(–4.5) dm, (not flexuous).

(often withered by flowering), rosulate, similar to cauline, with fewer distal leaflets.

(persistent to anthesis), rosulate, (5–)8–15(–22)-foliolate, (2–)3.5–15(–17) cm, leaflets petiolulate;

petiole 0.5–5 cm, (ciliate);

lateral leaflet blade oblong, ovate, obovate, or orbicular, smaller than terminal, margins entire, repand, crenate, or 3-lobed;

terminal leaflet (petiolule 0.2–1 cm), blade reniform or orbicular, 0.4–2 cm × 6–30 mm, margins entire, repand, dentate, or 3 or 5-lobed.

9–24, (9–)13–25-foliolate, petiolate, leaflets petiolulate;

petiole 2–6 cm, base auriculate (auricles to 10 × 2.2 mm);

lateral leaflets similar to terminal, blade often smaller;

terminal leaflet (petiolule to 0.5 cm), blade orbicular, obovate, ovate, or lanceolate, 1–4(–5) cm × 5–17 mm, margins entire or 3–5(–9)-toothed or -lobed.

1–4(–6), compound as basal, petiolate, [(0.5–)1.2–5.5(–7) cm, including petiole], leaflets petiolulate;

blade base not auriculate;

leaflets similar to basal.

ebracteate.

ebracteate.

sepals oblong, 1.2–2(–2.5) × 0.7–1(–1.2) mm, lateral pair not saccate basally;

petals (rarely absent), white, oblanceolate, 1.5–4(–5) × 0.6–1.2 mm;

filaments 2–3(–4) mm;

anthers ovate, 0.3–0.5 mm.

sepals oblong, 1.5–2.5 × 0.3–0.7 mm, lateral pair not saccate;

petals (sometimes absent) white, spatulate, 2.5–4.5(–5) × 0.5–1.1 mm; (stamens usually 4, lateral pair often absent, rarely 5 or 6);

filaments 1.8–3 mm;

anthers ovate, 0.3–0.5 mm.

divaricate or ascending, 3.5–12(–15) mm.

erect to ascending, (2–)3–10(–14) mm.

linear, (torulose), (1–)1.6–3(–3.5) cm × 0.9–1.5 mm; (valves glabrous or, rarely, pilose);

ovules 10–30 per ovary;

style 0.6–1.6(–2) mm.

linear, (torulose), (0.9–)1.5–2.5(–2.8) cm × (0.8–)1–1.4 mm, (often appressed to rachis);

ovules 14–40 per ovary;

style 0.1–0.6(–1) mm.

brown, oblong, 1.1–1.5 × 0.8–1 mm, (compressed, sometimes narrowly winged apically).

light brown, oblong or subquadrate, 0.9–1.3(–1.5) × 0.6–0.9(–1.1) mm, (narrowly margined).

= 16.

= 16.