Flora of North America species comparison

(2–)4–8-flowered;

bracts caducous.

usually 5–25-flowered;

bracts caducous.

8–17 mm.

6–22 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.

monosymmetric;

calyx usually pale green or pinkish, rarely yellow;

corolla yellow, longest petal 10.5–16 mm;

androecium heterantherous, stamens 7, staminodes 3;

anthers 3–5.1 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium linear, ovules 20–28;

ovary densely hairy;

style incurved.

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

erect, flat, straight, 30–65 × 5–9 mm, shallowly corrugated over seeds, dehiscent.

brown, rhomboid.

brown, obovoid or oblong-obovoid.

= 28.