Slitherine

The tall Kunai grass was a very prominent terrain in the Pacific.
We don't have this speficic terrain in OOB and I'm looking for some substitute using existing terrain.
Open is, well, too open.
Jungle is too dense and doesn't look right.
Forest doesn't look right
Farmland may be closest, although units can't hide properly like in the kunai grass.

Any suggestions?

Unfortunatly I have no idea which existing terrain would fit. Indeed I would be pleased if this terraine type would we added!