Flora of North America species comparison

elongated or sub-umbellate in fruit;

central rachis (0.5–)1.2–10(–25) cm.

(moderately to strongly congested), not elongated in fruit;

central rachis (4.3–)8–20 cm.

petals usually lavender to purple, rarely white, (4.5–)5.5–8(–10.5) mm;

gynophore stout, 0.5–1.2(–2.5).

petals white, (7.5–)8–11(–13) mm;

gynophore stout, (1–)1.5–4(–5.5) mm.

usually divaricate to divaricate-ascending, rarelyhorizontal, straight or slightly incurved, not whitish,often slender, sometimes stout, (4–)6–10(–13) mm, not or slightly flattened at base.

usually horizontal to reflexed, rarely divaricate, straight, whitish, stout, (6–)7–11(–13) mm, strongly flattened at base.

divaricate-ascending to ascending, straight or incurved, (1–)1.5–3(–4) cm.

usually horizontal to reflexed, rarely divaricate, straight or incurved to arcuate, (2.2–)3.5–6.5(–8) cm.

= 26.