Flora of North America species comparison

swollen, compact at stem base, (fleshy, stolons many, slender, ca. 1 mm diam., pubescent or glabrous).

often elongated, usually slender, rarely thickened, 1–2(–5) mm diam., (not fleshy).

erect, usually unbranched, rarely branched distally, 1–2.5 dm, sparsely to densely hirsute or pilose proximally, sparsely so or glabrous distally.

(simple or few to several from base), erect to ascending, (not flexuous), unbranched basally, sometimes branched distally, (0.3–)0.8–2.5(–3) dm.

(sometimes withered by anthesis), rosulate, pinnately compound, (3 or) 5 or 7 (or 9)-foliolate, 2–5(–9) cm, leaflets petiolulate or subsessile;

lateral leaflets shortly petiolulate or subsessile, blade usually broadly ovate, rarely broadly obovate or orbicular, smaller than terminal, margins usually entire, rarely slightly 3 (or 5)-lobed or crenate;

terminal leaflet subsessile, blade reniform or orbicular, 0.4–0.8(–1.2) cm × 5–9(–16) mm, margins entire or 3 (or 5)-lobed or crenate.

usually simple, rarely 3-foliolate, (3–)6–16 cm, leaflets petiolulate or subsessile;

petiole (1.5–)4–13 cm;

lateral leaflets subsessile or petiolulate (to 0.5 cm), blade similar to terminal, much smaller;

terminal leaflet (petiolule 0.5–2 cm), blade orbicular to reniform or broadly ovate, (1–)1.5–4.5 cm, base cordate, margins repand to coarsely crenate, (apiculate at vein endings, surfaces sparsely pubescent or glabrous).

2–5, 3 or 5-foliolate, petiolate, leaflets petiolulate or subsessile;

petiole 0.8–5 cm, base not auriculate;

lateral leaflets sessile or petiolulate (to 0.5 cm), blade similar to terminal, smaller;

terminal leaflet petiolulate (0.5–1.5 cm), blade broadly ovate to suborbicular, 1.5–4(–5) cm × 12–35 mm, margins repand to coarsely crenate or slightly lobed, (apiculate at vein endings, margins glabrous).

3–5(–7), 3–7 (or 9)-foliolate, petiolate, leaflets subsessile or sessile;

base not auriculate;

lateral leaflets: blade narrowly obovate, oblanceolate to linear, margins similar to terminal;

terminal leaflet blade narrowly obovate, ovate, oblanceolate, lanceolate, oblong, margins usually entire, sometimes 3-lobed or crenate.

ebracteate.

ebracteate, (subumbellate, 2–8(–14)-flowered, rachis usually 3–20 mm).

sepals (ascending) oblong, 3–3.5 × 1–1.5 mm, lateral pair not saccate basally;

petals white, oblanceolate, 5–6.5(–8) × 1.5–2.5 mm, (not clawed, apex obtuse to subemarginate);

filaments: median pairs 3.5–5 mm, lateral pair 2.5–3 mm;

anthers oblong, 1.2–1.6 mm.

sepals (greenish or purplish), oblong, 1–2 × 0.5–1 mm, lateral pair not saccate basally;

petals white, narrowly obovate, 2.5–5 × 1–3 mm.

ascending to divaricate-ascending, 7–20 mm.

suberect to ascending, 3–8(–10) mm.

linear, 1.5–2.5 cm × 1–1.2 mm;

ovules 10–14 per ovary;

style 1.2–2.5 mm.

linear, (torulose), (1.3–)1.8–2.5(–3) cm × 0.8–1.5(–2) mm; (valves glabrous or sparsely pubescent);

style 0.5–2 mm.

brown, oblong, 1.2–1.7 × 0.8–1.1 mm.

brown, oblong, 1–1.5 × 0.8–1 mm.

= 32, 36, 48.