Flora of North America species comparison

(2–)4–8-flowered;

bracts caducous.

usually 5–21-flowered;

bracts late caducous.

8–17 mm.

16–25 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.

slightly asymmetric;

calyx greenish;

corolla pale yellow, longest petal 16–24 mm;

androecium heterantherous, stamens 10, staminodes 0;

anthers of 9 short stamens 4–5.2 mm, of 1 long stamen 4.5–6.5 mm, dehiscing by 2 pores, apical appendage 0;

gynoecium slightly incurved, ovules 18–30;

ovary slightly hairy;

style slightly incurved.

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

somewhat pendulous, flat, slightly curved, 70–100 × 11–15 mm, slightly corrugated over seeds, indehiscent.

brown, rhomboid.

dark reddish brown, oblong-ellipsoid.