Flora of North America species comparison

25–37-flowered;

bracts caducous.

11–22 mm.

monosymmetric;

calyx pinkish brown;

corolla yellow, longest petal 8–12 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 10–16;

ovary densely hairy;

style incurved, not dilated.

ascending, flat, curved downward, 60–115 × 5.5–8 mm, corrugated over seeds, tardily dehiscent, each seed compartment nearly as wide as long.

ochre, yellowish brown, or dark reddish brown, ovoid or rhomboid.

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.

).