Flora of North America species comparison

mesophyllous, 6–17.5 cm, finely and densely hairy;

stipules caducous;

extrafloral nectaries 1, between many or all leaflet pairs, sessile;

leaflet pairs 5–9, blades oblong-elliptic or lanceolate- to oblanceolate-elliptic, 23–47 × 6–17 mm.

usually 3–15-flowered;

bracts caducous.

12–26 mm.

monosymmetric;

calyx yellow;

corolla deep yellow, longest petal 12–19 mm;

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

anthers of middle stamens 3.7–5 mm, of abaxial stamens 6–7.5 mm, dehiscing by 2 pores, apical appendage inconspicuous;

gynoecium incurved, ovules 30–50;

ovary densely hairy;

style slightly incurved.

somewhat pendulous, cylindrical, 70–135 × 7–10 mm, slightly corrugated over seeds, indehiscent.

brown or dark reddish brown, obovoid.

= 24.