Flora of North America species comparison

(1–)2–7 dm, base 2–5 mm diam.

basal (5–)10–30 cm, leaflet pairs (2–)3–4;

terminal leaflet broadly obovate, (2–)3–7 × 2–5 cm, teeth double, 9–17 per side, apex usually rounded, rarely obtuse;

cauline well developed, leaflet pairs 2–4.

(3–)5–30-flowered, ± to very leafy, wide, branch angles (15–)30–55°.

1–5 (proximal to 30) mm.

epicalyx bractlets ± elliptic, (3–)4–7 × 1.5–2.5(–3) mm;

sepals spreading, 5–11 mm, apex round-obtuse, mucronate;

petals spreading, usually cream-white, sometimes pale yellow, broadly ovate or obovate, (4–)4.5–6.5 × 3–5.5 mm;

filaments 1–2 mm.

1.2–1.5 mm.

= 14.