Flora of North America species comparison

erect, unbranched or sometimes branched distally, (0.5–)1.5–11(–18) dm.

erect, usually branched basally or slightly distally, rarely unbranched, (0.7–)0.9–3.2(–4.5) dm.

petiole 0.5–5 cm;

blade pinnate or, sometimes, 2-pinnate, broadly oblanceolate to ovate in outline, 2.5–11.4(–15.2) cm, lateral lobes lanceolate, (to 10 × 4 mm), margins incised.

petiole 0.5–1.5 cm;

blade pinnate, ovate or oblong in outline, 0.8–2.5 cm, lateral lobe (2–5 pairs), margins dentate or entire.

sessile or shortly petiolate;

blade smaller distally, distal lobes often narrower, surfaces often glabrous or sparsely pubescent.

sessile or shortly petiolate;

blade smaller distally, distal lobes often narrower, sparsely to moderately pubescent.

elongated or not in fruit, (flowers overtopped by developing fruits).

considerably elongated in fruit.

sepals erect, yellowish, oblong, 1.6–2.7 mm, glabrous;

petals narrowly oblanceolate, 2–2.5 × 0.3–0.6 mm;

median filaments 2.5–3.5 mm;

anthers 0.3–0.4 mm.

sepals ascending, yellowish, oblong, 0.7–1.2 mm, pubescent;

petals narrowly oblanceolate, 0.8–1.2 × 0.2–0.4 mm;

median filaments 1–1.5 mm;

anthers 0.1–0.2 mm.

divaricate to ascending, (often recurved in age), slender, (3–)4–9(–13) mm.

divaricate-ascending (often at 20–45º angle), straight, (1.5–)2.5–7(–10) mm.

erect to widely spreading, narrowly linear, slightly torulose, (9–)14–30(–34) × 0.6–1.1 mm, (usually terete, rarely slightly flattened, often curved inward);

valves each with obscure midvein;

septum not veined;

ovules 30–62 per ovary;

style obsolete, 0.07–0.3 mm, glabrous.

erect or ascending, linear, not or slightly torulose, (0.4–)5–8(–10) × 0.7–1 mm;

valves each with distinct midvein;

septum not veined;

ovules 6–12 per ovary;

style 0.1–0.2 mm, glabrous.

uniseriate, light brown, narrowly oblong, 1–1.5 × 0.3–0.5 mm.

uniseriate, brown, oblong, 0.6–0.8 × 0.4–0.5 mm.

= 14.

= 14.