Flora of North America species comparison

1–5-flowered;

bracts caducous.

1-flowered;

bracts caducous.

9–16 mm.

6–21 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 often persistent into developing fruit, pale green;

corolla pale yellow, longest petal 5.5–10 mm;

androecium not heterantherous, stamens 7, staminodes 3;

anthers to 2.9–4 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium nearly linear, ovules 6–12;

ovary hairy;

style linear.

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

erect, cylindrical, straight, 8–15 × 6–8 mm, not corrugated over seeds, dehiscing apically downward.

brown or pinkish brown, paddle-shaped or pyriform.

brown, paddle-shaped to pyriform.

= 28.

= 28.