Flora of North America species comparison

slightly sclerophyllous, 2–10 cm, hairy;

stipules persistent, to 1 mm wide;

extrafloral nectaries between all leaflet pairs, stipitate;

leaflet pairs 2–4, blades obovate to elliptic-obovate or oblong-elliptic, 10–38 × 5–19 mm.

(2–)4–8-flowered;

bracts caducous.

8–17 mm.

monosymmetric;

calyx pale green, pinkish, or yellowish;

corolla golden yellow, longest petal 9–15 mm;

androecium not heterantherous, stamens 7, staminodes 3;

anthers 2.5–4.2 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium linear, slightly incurved, ovules 28–42;

ovary hairy;

style filiform, incurved.

erect, cylindrical, slightly curved, 180–350 × 50–80 mm, shallowly corrugated over seeds, dehiscing apically downward.

brown, rhomboid.