Flora of North America species comparison

1–5-flowered;

bracts caducous.

1(or 2)-flowered;

bracts caducous.

9–16 mm.

5–10 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 caducous, yellowish to pale green;

corolla yellow or orange-yellow, longest petal 8.5–9 mm;

androecium not heterantherous, stamens 7, staminodes 3;

anthers 3–3.5 mm, dehiscing by 1 apical pore, apical appendage 0;

gynoecium nearly linear, ovules 18–28;

ovary densely hairy;

style incurved, linear, 3–3.5 mm.

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

erect, cylindrical, straight or slightly curved, 13–24 × 5–8 mm, slightly corrugated over seeds, dehiscing apically downward.

brown or pinkish brown, paddle-shaped or pyriform.

pinkish brown, olive green, or ochre, pyriform.

= 28.