In Thailand they use this material : (see PDF)
and this plant :
Scientific name : Chrysopogon zizanioides
Scientific name (old but frequent) : Vetiveria zizanioides
Common english name : Vetiver
Thai name : หญ้าแฝกหอม
I’ve seen several pictures of projects in central america using it for erosion control. The use of that plant is fairly recent, so no input on long term use. But it seems to be promoted by World organizations.
The root system is very impressive. Plant also used for water cleaning and pollutant filtration, bio-remediation. It’s a plant that also has other economic interest : vetiver is used in perfume industry.
If you use the scientific names, you should find enough info to get you started.
Good luck for your research 🙂