Flora of North America species comparison

branched often proximally and distally, (2–)3–8(–12.5) dm, (glabrous or pubescent).

paniculately branched distally, (2–)4.5–17(–28) dm.

petiole (1–)2–8(–14) cm, ciliate;

blade usually oblanceolate to ovate, rarely oblong, (2–)6.5–20(–29) cm × 10–42(–50) mm, margins entire, (surfaces glabrous or pubescent).

petiole (0.5–)1.2–10(–15) cm;

blade usually oblong to lanceolate, or oblanceolate to spatulate, rarely ovate or obovate, (3.7–)5–31(–54) cm × (12–)16–78(–140) mm, margins usually entire, rarely dentate or repand.

(ascending);

sessile;

blade lanceolate to oblong-lanceolate, (0.8–)1.6–8.5(–14) cm × 2–13(–28) mm, (base amplexicaul to sagittate), margins entire, (surfaces glabrous or pubescent).

(ascending, not appressed to stem);

sessile;

blade linear to linear-lanceolate, (1–)2.2–8.3(–19.5) cm × (2–)3–11(–25) mm, (base cuneate to attenuate, not auriculate), margins entire.

sometimes corymbose, lax or dense, elongated or not in fruit, (flower buds ovate to lanceolate).

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

sepals erect, ovate to oblong, (2.5–)3–6(–10) × (1–)1.5–2(–2.5) mm;

petals white or lavender to purple, oblanceolate to spatulate or linear, (5–)7–14(–19) × (0.5–)1–3(–4) mm, margins slightly crisped between blade and claw, claw differentiated from blade, [slender, (2–)3–6.5(–10) mm, narrowest at base];

nectar glands confluent and subtending bases of stamens, sometimes only lateral;

filaments tetradynamous, median pairs 3–5.5(–8) mm, lateral pair (2–)2.5–4.5(–7) mm;

anthers included or partially exserted, oblong, (1.5–)2–3.2(–5) mm, not circinately coiled;

gynophore (stout), 0.5–1(–2) mm.

sepals erect, linear to linear-oblong, (3–)3.5–5.5(–7.5) × (0.5–)0.8–1(–1.5) mm;

petals white or lavender to purple, spatulate to oblanceolate, (4.5–)6–9(–13) × (0.5–)0.8–1.5(–2.3) mm, margins not crisped, claw differentiated from blade, [slender, (2–)3–4.5(–7) mm, narrowest at base];

nectar glands lateral, flat or toothlike, median glands absent;

filaments subequal to slightly tetradynamous, (3–)4.5–7.5(–12.5) mm;

anthers exserted, linear to narrowly oblong, (1–)1.5–2.5(–4.5) mm, not circinately coiled;

gynophore 0.5–2(–5.5) mm.

horizontal to divaricate, often curved upward, stout or slender, (2.5–)3.5–11(–20) mm, not flattened at base.

usually horizontal to divaricate, rarely ascending or reflexed, usually straight, rarely incurved, slender or stout, (2–)3–9(–13) mm, often strongly flattened, rarely not flattened at base.

erect, torulose, straight or slightly incurved (forming arc with pedicel), usually terete, rarely 4-angled, 1–5.3(–6.9) cm × (0.5–)0.8–1(–1.2) mm;

ovules 20–62per ovary;

style cylindrical, 0.5–1.5(–3.3) mm.

usually horizontal to divaricate-ascending, or ascending, rarely reflexed, usually torulose, rarely submoniliform, usually strongly incurved, sometimes straight, rarely arcuate, terete, (0.8–)1.4–6.5(–8) cm × 1–1.3(–2) mm;

ovules 14–40 per ovary;

style usually cylindrical, rarely subclavate, 0.5–1.3(–3.2) mm.

(flattened), (0.7–)1–1.3(–1.5) × 0.5–0.7(–1) mm.

(1–)1.2–2(–2.3) × 0.7–1(–1.3) mm.