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 cm, hairy;

stipules persistent;

extrafloral nectary 1, between leaflet pair, stipitate;

leaflet pairs 1, blades oblong-elliptic or obliquely obovate-elliptic, 6–20 × 3–10 mm.

4–18-flowered;

bracts caducous.

1(or 2)-flowered;

bracts caducous.

13–23 mm.

5–10 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 or orange-yellow, longest petal 8.5–9 mm;

androecium not heterantherous, stamens 7, staminodes 3;

anthers 3–3.5 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium nearly linear, ovules 18–28;

ovary densely hairy;

style incurved, linear, 3–3.5 mm.

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

erect, cylindrical, straight or slightly curved, 13–24 × 5–8 mm, slightly corrugated over seeds, dehiscing apically downward.

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

pinkish brown, olive green, or ochre, pyriform.

= 28.