Flora of North America species comparison

elongate.

short.

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

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

± tufted, 1.7–4.7 dm;

base 1–3 mm diam., usually not septate-glandular.

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.

moderately to densely hairy;

basal 5–12 cm, leaflet pairs 3;

terminal leaflet obovate-elliptic, 1–2.5(–3) × 1–2(–2.5) cm, teeth single or double, 6–10 per side, apex obtuse to rounded;

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

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

5–35-flowered, ± leafy, usually ± open, 1/3–2/3 of stem, wide, branch angles 15–60°.

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

1–5 (proximal to 15) mm, predominantly short-hairy, usually not or sparsely, sometimes moderately, septate-glandular.

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.

opening narrowly;

epicalyx bractlets linear-oblanceolate, 2–3.5 × 1 mm;

sepals ± erect, 4–6(–8) mm, apex obtuse;

petals not overlapping, ± erect, cream-white, usually narrowly obovate, sometimes oblanceolate, 3–5 × 2–3 mm, usually ± shorter than sepals;

filaments 1.5–3 mm, anthers 0.6–1 mm;

styles slender, 1.5–2.5 mm.

light brown, 1 mm.

light reddish brown, 1–1.2 mm.

= 14.