Flora of North America species comparison

mesophyllous, 5.5–9.5 cm, glabrous or glabrate;

stipules caducous;

extrafloral nectary 1, between first leaflet pair, sessile or short-stipitate;

leaflet pairs 3, blades oblong-lanceolate, 25–60 × 5–14 mm.

mesophyllous, 12–27 cm, finely hairy;

stipules caducous;

extrafloral nectary 1, base of or along petiole, sessile or shortly stipitate;

leaflet pairs 5–9, blades elliptic, oblong-elliptic, or lanceolate, 30–60 × 9–24 mm.

4–18-flowered;

bracts caducous.

usually 5–15-flowered;

bracts caducous.

13–23 mm.

9–17 mm.

monosymmetric;

calyx brownish to greenish yellow;

corolla golden yellow, longest petal 8–16 mm;

androecium heterantherous, stamens 7, middle stamens 1/2 as long as abaxial or smaller, staminodes 3;

anthers of middle stamens to 3.6–4.8 mm, of abaxial stamens 5.2–6.5 mm, dehiscing by nearly U-shaped pore, apical appendage inconspicuous;

gynoecium incurved, ovules 34–50;

ovary hairy;

style slightly incurved.

monosymmetric;

calyx pinkish brown;

corolla yellow, longest petal 8–14 mm;

androecium heterantherous, stamens 7, staminodes 3;

anthers of middle stamens 2.6–3.5 mm, of abaxial stamens 4–5 mm, truncate, dehiscing by 2 pores, apical appendage 0;

gynoecium incurved, ovules 20–28;

ovary glabrous or slightly hairy;

style incurved, not dilated.

somewhat pendulous, cylindrical, straight, 40–120 × 6–10 mm, corrugated over seeds, indehiscent.

ascending, flat, curved downward, 65–110 × 7.5–11 mm, corrugated over seeds, tardily dehiscent, each seed compartment wider than long.

dull brown or dark reddish brown, obliquely obovoid or oblong-ellipsoid.

dark reddish brown, obovoid or oblong-obovoid.

= 28.

= 28.