Flora of North America species comparison

erect, usually unbranched basally, branched distally or sometimes throughout, (1.3–)2–8.2(–10.7) dm.

erect, unbranched basally or branched proximally and/or distally, 4–12(–15) dm.

petiole 0.5–4.7 cm;

blade pinnate, obovate to oblanceolate in outline, 1.5–10.3 cm, lateral lobes (2–9 pairs), ovate or oblong to lanceolate or linear, margins usually dentate to incised or entire, rarely pinnatifid or crenate.

petiole 0.5–3.7 cm;

blade pinnate, oblanceolate to obovate or ovate in outline, 1–6 cm, lateral lobes (2–5 pairs), oblanceolate to linear or narrowly lanceolate, (7–25 × 2–10 mm), margins usually entire or serrate, rarely incised, (apex obtuse).

sessile or shortly petiolate;

blade smaller distally, distal lobes oblong, lanceolate, linear, (margins dentate to denticulate or entire), surfaces pubescent or glabrous.

sessile or shortly petiolate;

blade smaller distally, distal lobes often narrower, surfaces densely pubescent.

considerably elongated in fruit, (glandular or eglandular).

considerably elongated in fruit.

sepals erect to ascending, yellowish, oblong to ovate, 1.6–2.4 mm, glabrous or pubescent;

petals narrowly oblanceolate, 1.7–2.8 × 0.5–0.9 mm;

median filaments 1.6–2.4 mm;

anthers 0.3–0.4 mm.

sepals spreading or sometimes ascending, greenish to yellowish, oblong, 1–2 mm, densely pubescent, (trichomes dendritic, sometimes mixed with glandular papillae);

petals oblanceolate, 1–2 × 0.5–0.7 mm (equaling or shorter than sepals);

median filaments 1.4–2 mm;

anthers 0.2–0.3 mm.

ascending to divaricate or horizontal, straight, (3–)5–25(–30) mm.

ascending to divaricate, straight, 6–15 mm.

erect to ascending, linear, slightly torulose, 8–20 × 0.9–1.3 mm, (straight or slightly to strongly curved inward);

valves each not veined or with distinct midvein;

septum not veined;

ovules 14–26 per ovary;

style 0.1–0.3 mm, glabrous.

divaricate to suberect, linear, slightly torulose, 10–20(–23) × 0.7–1 mm, (acute at both ends);

valves each with distinct midvein, (sparsely to densely pubescent);

septum not veined;

ovules 16–40 per ovary;

style 0.1–0.2 mm, glabrous.

uniseriate, reddish brown, oblong, 0.9–1.3 × 0.5–0.6 mm.

uniseriate or biseriate, light brown, oblong, 0.7–1.1 × 0.5–0.6 mm.

= 14.