Flora of North America species comparison

(often strongly congested), not elongated in fruit;

central rachis (0.6–)1.2–7(–9) cm.

(congested), elongated in fruit;

central rachis (3.7–)4.5–12(–16.5) cm.

petals usually lavender, rarely white, (5–)6–8.5(–9.5) mm;

gynophore stout, 0.5–1(–3) mm.

petals white, (5–)6–9(–10) mm;

gynophore stout, (0.5–)1–3 mm.

horizontal, straight, not whitish, stout, 3–5(–6) mm, strongly flattened at base.

horizontal to divaricate, straight, whitish, stout, (5–)6–9(–13) mm, moderately flattened at base.

horizontal or divaricate-ascending to ascending, straight or incurved, (0.9–)1.4–2.7(–3.4) cm.

usually horizontal or divaricate, rarely divaricate-ascending, incurved, (1.4–)1.9–3.7(–4.5) cm.

= 26.