1	Leaflets, Inflorescences and infructescence pubescent	S. helenae Koehne
–	Leaflets, inflorescences and infructescence glabrous	2
2	Leaflets 7–16 per compound leaf, 5–8 × 1.5–2.0 cm, oblong or oblong-lanceolate, lateral veins 24–30 pairs, both surfaces tomentose when young, glabrescent with age	S. insignis
–	Leaflets 5–7 per compound leaf, 10–18 × 2.5–3.5 cm, oblong, lateral veins 19–21 pairs, both surfaces glabrous	S. harrowiana