Flora of North America species comparison

1–5-flowered;

bracts caducous.

usually 5–15-flowered;

bracts caducous.

9–16 mm.

9–17 mm.

monosymmetric;

calyx caducous, pale green;

corolla yellow or orange-yellow, longest petal 12–17 mm;

androecium not heterantherous, stamens 7, staminodes 3;

anthers 2.2–3.3 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium nearly linear, ovules 22–40;

ovary densely hairy;

style slightly incurved.

monosymmetric;

calyx pinkish brown;

corolla yellow, longest petal 8–14 mm;

androecium heterantherous, stamens 7, staminodes 3;

anthers of middle stamens 2.6–3.5 mm, of abaxial stamens 4–5 mm, truncate, dehiscing by 2 pores, apical appendage 0;

gynoecium incurved, ovules 20–28;

ovary glabrous or slightly hairy;

style incurved, not dilated.

erect, subcylindrical, straight or slightly curved, 20–35 × 4.5–6.5 mm, corrugated over seeds, dehiscing apically downward.

ascending, flat, curved downward, 65–110 × 7.5–11 mm, corrugated over seeds, tardily dehiscent, each seed compartment wider than long.

brown or pinkish brown, paddle-shaped or pyriform.

dark reddish brown, obovoid or oblong-obovoid.

= 28.

= 28.