Flora of North America species comparison

1-flowered;

bracts caducous.

6–21 mm.

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

brown, paddle-shaped to pyriform.

pendula is often confused with close relative S. bicapsularis, which is absent from North America and has shorter pedicels, only to 5 mm (H.

. Irwin and R.

.

1982;

B.

et al.

).

= 28.