KEY TO THE SUBSPECIES

1	Leaf laminas obovate to elliptic, 15-45 by 4.5-15 cm, not strongly decurrent, primary veins 12-20; petiole 1-9 cm long Barringtonia sarcostachys subsp. sarcostachys
1'	Leaf laminas linear-lanceolate, 30-100 by 5-10.5 cm, with a strongly decurrent base, primary veins 19-50; petiole 1-1.5 cm long Barringtonia sarcostachys subsp. dolichophylla