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.

slightly sclerophyllous, 1.5–5.5 cm, hairy;

stipules caducous;

extrafloral nectary 1, between leaflet pair, stipitate or subsessile;

leaflet pairs 1, blades obliquely oblong or ovate-oblong, 8–46 × 5–16 mm.

4–18-flowered;

bracts caducous.

1–3-flowered;

bracts caducous.

13–23 mm.

3–11 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 caducous, yellowish to pale green;

corolla yellow, longest petal 5–10 mm;

androecium not heterantherous, stamens 7, staminodes 3;

anthers to 1.8–2.8 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium nearly linear, ovules 22–36;

ovary densely hairy;

style incurved, to 1.5 mm, distally dilated.

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

erect, cylindrical, curved, 17–30(–50) × 4.5–6.5 mm, slightly corrugated over seeds, dehiscing apically downward.

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

brownish olive green becoming gray, paddle-shaped to pyriform.

= 28.