Flora of North America species comparison

often simple from base, erect or decumbent basally, branched (several) distally, (0.8–)2–6.5(–9) dm.

simple from base, erect, branched distally, (2–)3–8(–11) dm.

(early withered);

not rosulate;

petiole 1–4 cm;

blade obovate, spatulate, or ovate, (1.5–)3–10(–15) cm × 10–40 mm, margins sinuate to dentate or entire.

rosulate (on sterile shoots);

petiole (1.5–)2.5–8(–10) cm;

blade oblanceolate to spatulate, (2–)3–7(–9) cm × 5–23(–32) mm, margins crenate to serrate-crenate.

sessile;

blade ovate, elliptic, oblong, or lanceolate, oblanceolate, or obovate, (1–)3–9(–15) cm × (5–)10–20(–50) mm, base sagittate-amplexicaul or auriculate, margins dentate or entire, (surfaces pubescent or glabrous).

shortly petiolate or sessile;

blade oblong to oblanceolate, 1–3.5 cm × 4–15 mm, base cuneate, not auriculate, margins entire.

(corymbose panicles), slightly or considerably elongated in fruit;

rachis glabrous or puberulent, trichomes straight or curved, cylindrical.

(subcorymbose panicles), slightly elongated in fruit;

rachis puberulent, trichomes straight.

sepals oblong to ovate, 1.5–2.5 × 0.7–1.2 mm;

petals white, obovate, (2.5–)3–4(–4.5) × (1–)1.3–2(–2.2) mm, claw 1–1.7 mm;

stamens 6;

filaments 2–3 mm, (glabrous);

anthers 0.4–0.5 mm.

sepals oblong to ovate, (1–)1.3–1.8(–2) × 0.9–1.2 mm;

petals white, suborbicular to broadly obovate, (1.8–)2–3 × 1.3–2 mm, claw 0.5–1 mm;

stamens 6;

filaments 1.4–1.6 mm, (glabrous);

anthers 0.5–0.7 mm.

ascending to horizontal, straight, (terete), 5–10(–15) × 0.2–0.3 mm, glabrous or sparsely puberulent adaxially.

divaricate-ascending to horizontal, straight, (terete), 3–6(–8) × 0.2–0.25 mm, puberulent adaxially.

(indehiscent), cordate to subreniform, (2–)2.5–3.7(–4.3) × (3.2–)3.7–5(–5.6) mm, apically (obtuse to subacute), not winged, apical notch absent;

valves thin, smooth, reticulate-veined, glabrous;

style (0.6–)1–1.8(–2) mm.

broadly ovate, (2.5–)3–3.5(–4) × (2–)2.3–2.8 mm, apically winged, apical notch 0.1–0.2mm deep;

valves thin, smooth, not veined, glabrous;

style 0.2–0.6 mm, exserted beyond apical notch.

ovate, 1.5–2.3 × 1–1.3 mm.

ovate, 1.5–2 × 1–1.3 mm.

= 32, 64.