Flora of North America species comparison

(1–)2–7 dm, base 2–5 mm diam.

1.5–7.5 dm, base 1.5–3 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.

basal (3–)6–20(–30) cm, leaflet pairs 3(–4);

terminal leaflet ± broadly obovate, (1–)1.5–5(–7) × 1–3 cm, teeth usually double, rarely single, 6–16 per side, apex rounded to obtuse;

cauline well developed or reduced, leaflet pairs 2–3.

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

(2–)10–30-flowered, ± leafy or not, usually wide, branch angles (15–)25–55°.

1–5 (proximal to 30) mm.

2–10 (proximal to 20) 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.

epicalyx bractlets narrowly elliptic, 1.5–4 × 0.5–1(–1.5) mm;

sepals reflexed, (3–)4–6(–8) mm, apex usually obtuse, sometimes acute;

petals reflexed, yellow, narrowly ovate or obovate, 3–4(–5) × 1.5–3 mm;

filaments 0.5–1.5(–2) mm.

1.2–1.5 mm.

0.9–1.3 mm.

= 14.

= 14.