Flora of North America species comparison

cylindrical, slender, 1–3 mm diam.

absent.

erect, unbranched or rarely branched distally, (0.8–)1–2.5(–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.

(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).

simple or 3-foliolate, (1.5–)3–8 cm, leaflets petiolulate or subsessile;

petiole (1–)2–6 cm;

lateral leaflets subsessile, blade similar to terminal, much smaller;

terminal leaflet petiolulate (to 1 cm), blade reniform to cordate, (0.5–)1–2 cm, base cordate, margins entire or 3-lobed.

3–7, 3-foliolate (or distalmost simple), petiolate, leaflets petiolulate or sessile;

petiole 0.7–3.5 cm, base auriculate (auricle 0.7–5 mm);

lateral leaflets sessile or petiolulate (to 0.5 cm), blade oblong to ovate or oblong;

terminal leaflet (petiolule 0.5–1 cm), blade broadly ovate to suborbicular or reniform, 1.5–4 cm × 15–35 mm, margins often 3 or 5-lobed (lobe apex minutely apiculate, glabrous on margin).

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, 2.5–3 × 1–1.5 mm, lateral pair not saccate basally;

petals white, oblanceolate, 6–8 × 2–3 mm (not clawed, apex obtuse to subemarginate);

filaments: median pairs 3.5–4 mm, lateral pair 2–2.5 mm;

anthers ovate, ca. 0.7 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.

divaricate-ascending, (7–)10–17 mm.

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

linear, (1.5–)2–3.5(–4) cm × 1.3–1.7 mm;

ovules 10–16 per ovary;

style 2–4 mm.

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, 1.7–2 × 1–1.2 mm.

brown, oblong, 1–1.6 × 0.8–1.2 mm.

= 16.