Flora of North America species comparison

usually 5–15-flowered;

bracts caducous.

9–17 mm.

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.

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

dark reddish brown, obovoid or oblong-obovoid.

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.