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Key to Syngonium
Araceae
Syngonium
https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&keyid=41066
(c) 古淑玲 - CC0
(c) chiuluan - CC-BY
1 Stems not glaucous, sometimes with numerous rough emergences; leaf segments usually slender, of nearly equal size and shape; petioles subterete, usually with a sharp medial rib; rachis usually gradually curved, not angular between each segment; staminate flowers deeply retuse at the apex, showing no indication of the line of fusion