The G minor augmented chord is a 3-note chord consisting of the notes G, Bb and D#.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Gm#5.
In case you prefer a non-interactive variant of the chord chart, we've embedded a PNG image below that shows the notes for the the Gm#5 chord. Feel free to save or share the image as needed.