Flora of North America species comparison

branched distally, (1.5–)3–14(–23.5) dm, (glabrous throughout or sparsely to densely hirsute proximally).

(hollow), branched distally, (1.8–)4.5–13(–21) dm.

(and proximal cauline): petiole (1–)1.7–8(–11) cm, pubescent or glabrous;

blade oblanceolate in outline (lateral lobes usually oblong to linear, rarely deltate), (4–)7.2–20.5(–30) cm × (6–)10–40(–100) mm, margins pinnately lobed or lyrate (lobes entire or dentate).

(and proximal cauline): petiole (1–)1.8–9.5(–13) cm, ciliate;

blade often oblong, sometimes ovate or lanceolate, (3.8–)6–23(–28) cm × (9–)20–65(–100) mm, margins usually dentate, sometimes sinuate, rarely repand.

petiolate;

blade usually lanceolate to linear, sometimes oblanceolate to oblong, 1.5–7(–10) cm × 3–12(–20) mm, margins usually entire or repand, rarely lobed.

petiolate;

blade lanceolate, similar to basal, smaller distally, margins dentate or entire.

corymbose, somewhat lax, considerably elongated in fruit.

dense, slightly elongated in fruit (to 10 dm, flower buds narrowly oblong).

sepals (equal), ascending, oblong, (2.5–)3–5(–5.5) × 1–1.7(–3) mm, (lateral pair not saccate);

petals usually white, rarely lavender, usually spatulate, rarely obovate, 5–7.5(–9.5) × 1.5–2.5(–3.5) mm, margins not crisped, claw obscurely differentiated from blade (widest at base);

nectar glands continuous, flat, subtending bases of stamens;

filaments tetradynamous, median pairs 3–4.5(–5.5) mm, lateral pair 2.5–3.5(–4.5) mm;

anthers included, oblong, (1–)1.5–2.2(–2.5) mm, not circinately coiled;

gynophore 0.5–0.8(–1.5) mm.

sepals erect, oblong to linear-oblong, (4–)4.5–8(–9) × 1–2 mm;

petals white, spatulate to oblanceolate, (7–)9–15(–16) × 1–2 mm, claw strongly differentiated from blade [(3–)3.5–5.5(–6) mm, widest at base];

nectar glands confluent, median and lateral;

filaments subequal, (6–)7–14.5(–15.5) mm;

anthers exserted, linear to narrowly oblong, 2.5–4.5(–6) mm, circinately coiled, (apiculate);

gynophore (0.5–)1–4(–6) mm.

often divaricate, sometimes reflexed, rarely horizontal or divaricate-ascending, straight, slender, (4–)5–13(–19) mm, somewhat flattened at base.

erect distally, strongly curved upward, stout, (1.5–)2.5–5(–7) mm, slightly flattened at base.

divaricate to reflexed, submoniliform to strongly torulose, straight or curved, terete, (2–)3–6.6(–7.4) cm × 0.7–1(–1.5) mm, (replum constricted between seeds);

ovules 26–62 per ovary;

style usually clavate to subclavate, rarely cylindrical, (0.5–)0.8–2(–5) mm.

erect, (subappressed to rachis), torulose, somewhat tortuous, terete, (1.8–)3.3–8(–10) cm × (0.7–)1–1.5(–1.8) mm;

ovules 50–78 per ovary;

style usually cylindrical, rarely subclavate, (0.5–)0.7–1.5(–3) mm.

(oblong), (1–)1.3–1.8(–2) × 0.5–1 mm.

(0.7–)1–1.5(–2) × 0.5–0.7(–1) mm.

= 26.