Hygrophila corymbosa 'Kompakt' is a dwarf variety of Hygrophila corymbosa, probably nursery created.  Large leaves are densely packed on the stems of Hygrophila corymbosa 'Kompakt' making it an ideal choice for foreground areas or midground areas in the aquarium and also in nano tanks.  It is a much slower grower than most other types.  Make sure to keep Hygrophila corymbosa 'Kompakt' properly trimmed to allow light to the lower leaves for the best look.   

Because of its compact growth habit and dark green color, Hygrophila corymbosa 'Kompakt' would also be a good choice for terrarium or paludarium use.

Common Name:     Hygrophila compact

Family Name:          Acanthaceae

Native To:                Cultivar

Lighting:                  Medium

Requirements:          Undemanding

Growth Form:           Stem

Growth Rate:            Moderate

True Aquatic:            Yes

Placement in Tank:   Fore to mid-ground

Here's a great article from Tropica about this plant written by our friend and brilliant aquascaper George Farmer: https://tropica.com/en/articles/hygrophila-compact/