Flora of North America species comparison

elongate.

openly tufted to loosely spaced, (0.3–)0.6–4 dm;

base 1–3 mm diam., ± densely septate-glandular.

(1–)2–4 dm, base (1.5–)2–3 mm diam., short hairs usually absent or sparse, sometimes moderately abundant.

glabrate or sparsely to ± densely hairy;

basal (2–)3–16 cm, leaflet pairs (2–)3–4(–5);

terminal leaflet broadly obovate-cuneate to flabellate, 0.2–3(–4) × 0.5–3 cm, teeth single or double, 2–15 per side, apex usually rounded to truncate, sometimes obtuse;

cauline 0–2, reduced, leaflet pairs 2–3.

(4–)7–16 cm, sparsely to moderately hairy (hairs to 1 mm), peglike-glandular, not bristly;

leaflet pairs (2–)3(–4);

terminal leaflet broadly obovate, (1–)2–3(–4) × 1.5–3 cm, teeth usually double, (5–)8–15 per side.

2–40-flowered, not or ± leafy, open, 1/6–3/4(–4/5) of stem, ± wide, branch angles (10–)20–40(–50)°.

3–20 (proximal to 40) mm, not or sparsely to moderately short-hairy, predominantly septate-glandular.

5–20 (proximal to 40) mm, not bristly, short hairs sparse to moderately abundant.

opening widely;

epicalyx bractlets linear to elliptic, 2–6 × 1–2 mm;

sepals spreading, 4–7(–9) mm, apex acute to obtuse, apiculate;

petals overlapping or not, spreading, cream-white to pale yellow (red-tinged in var. crumiana), narrowly to broadly obovate, 4–12 × 3–11 mm, longer than sepals;

filaments 1–4 mm, anthers 0.7–1.2 mm;

styles thickened, 1–1.5 mm.

(5–)10–40;

hypanthia and sepals not bristly;

epicalyx bractlets linear to elliptic, 3–6 × 1–2 mm;

sepals 5–7(–9) mm;

petals widely overlapping, not red-tinged, broadly obovate, 6–12 × 5–11 mm;

filaments 2–4 mm;

styles light reddish brown.

light brown, 1 mm.