Flora of North America species comparison

absent.

absent.

erect, unbranched or, rarely, branched, 0.5–1.6(–3.5) dm.

(simple or few from base), erect to ascending, (not flexuous), unbranched or branched distally, (0.5–)0.8–3.2(–4.1) dm, usually pubescent throughout or proximally, rarely glabrous.

(7 or) 9–21-foliolate, (thick, veins impressed);

leaflets petiolulate or sessile;

lateral lobes or leaflets similar to terminal;

terminal lobe or leaflet blade orbicular, broadly ovate to lanceolate, base rounded to cuneate, margins usually entire.

(persistent to anthesis), rosulate, pinnately compound, 5–9(–13)-foliolate, 2–8.5(–11) cm, leaflets petiolulate or subsessile;

petiole 1–6 cm;

lateral leaflets petiolulate or subsessile, blade obovate to oblanceolate, smaller than terminal, margins entire or crenate;

terminal leaflet (petiolule 0.1–0.7 cm), blade usually orbicular to ovate, rarely oblong, 0.4–1.5(–2.3) cm × 3–10(–13) mm, base cordate to rounded, margins entire, or crenate-dentate to obscurely 3 or 5-lobed, (surfaces often hirsute, sometimes glabrous).

2–4(–7), pinnatisect or pinnately compound, (7 or) 9–21-foliolate, (thick, veins impressed), petiolate, leaflets petiolulate or sessile;

petiole base not auriculate;

lobes or leaflets (of proximal leaves) (4–)7–10 each side of rachis, fewer distally, distal leaves with 4 or 5 lobes or leaflets each side of rachis;

terminal leaflet petiolulate or sessile, blade (or lobe) narrowly lanceolate to lanceolate, base cuneate, margins entire.

3–8, pinnately compound, similar to basal, smaller and fewer distally, petiolate, leaflets petiolulate or subsessile;

petiole 0.5–2 cm, base not auriculate.

ebracteate.

ebracteate.

sepals oblong or ovate, 3.6–4.4 mm, lateral pair saccate basally, (green with hyaline margins);

petals white-lilac, 9–12.3 × 4.8–6.8 mm, (clawed, apex rounded or emarginate);

filaments: median pairs 3.5–4.5 mm, lateral pair 2–3 mm;

anthers narrowly oblong, 0.9–1.4 mm.

sepals oblong, 1.3–1.8(–2) × 0.5–1 mm, lateral pair not saccate basally;

petals white, narrowly spatulate to oblanceolate, 2.5–3.5 × 0.9–1.5 mm (not clawed);

filaments: median pairs 1.7–2.5 mm, lateral pair 1.2–2 mm;

anthers ovate, 0.3–0.5 mm.

erect-ascending, 5–15 mm.

divaricate-ascending, (2–)3–9(–12) mm.

linear, 1–1.8 cm × ca. 1.5 mm;

ovules ca. 16 per ovary;

style ca. 1 mm, (stout).

linear, (torulose), (1.3–)1.6–2.8 cm × 1–1.7 mm; (valves glabrous or sparsely pubescent);

ovules 16–36(–42) per ovary;

style 0.4–1(–1.5) mm.

brown, oblong, ca. 1.5 mm.

brown, oblong, 1–1.6 × 0.8–1.2 mm.

= 56, 60, 64, 80–100.

= 16.