Flora of North America species comparison

branched, (1.3–)3.4–8.3(–12) dm, (somewhat glaucous, glabrous throughout or pubescent proximally).

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

petiole (1.5–)2–5.2(–9) cm, glabrous or pubescent;

blade usually oblanceolate to spatulate, rarely obovate or lanceolate, 3.3–14(–20) cm × (05–)10–32(–47) mm, margins often pinnately lobed to lyrate, sometimes dentate or entire.

(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.

sessile;

blade linear to lanceolate, smaller distally, (base sagittate, appressed to stem), margins usually entire, rarely dentate.

petiolate;

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

dense, slightly elongated in fruit, (flower buds oblong).

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

sepals erect, lanceolate to linear-lanceolate or ovate, (3–)3.5–5(–5.5) × 1–1.5(–2) mm;

petals white, linear to narrowly oblanceolate, 8–12.5(–16) × 0.3–0.5(–1) mm, margins strongly crisped, claw differentiated from blade, (slender, 2.5–4 mm, narrowest at base);

nectar glands surrounding bases of lateral stamens, median glands absent;

filaments subequal or slightly tetradynamous, 2.5–6.5(–10) mm;

anthers exserted, linear, 1.5.–2(–2.5) mm, slightly circinately coiled, (apiculate);

gynophore (0.5–)1–2(–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.

horizontal to divaricate, straight or slightly curved, stout, 1–2(–2.5) mm, flattened at base.

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

divaricate to ascending, torulose, often straight, sometimes slightly curved, terete, (0.8–)1.2–2.7(–3) cm × 1–1.5(–2) mm;

ovules 12–26 per ovary;

style cylindrical, (0.2–)0.5–1(–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.

(plump), (1.3–)1.5–2 × 0.8–1(–1.3) mm.

(0.7–)1–1.5(–2) × 0.5–0.7(–1) mm.

= 26.