• 50 year old Maritime pine (Pinus pinaster Ait)
• 2-7-14 year old "Baupré" poplar(Populus trichocarpa)
• 2-7-13 year old "Raspalje" poplar (Populus deltoides)
• 4-8-16 year old "Dorskamp" poplar (Populus x euramericana vat)
• 4-9 year old "I214" poplar (Populus )
• 2 year old Red oak (Querqus rubra)
• Trees grown on slopes (Ecoslopes European project)
• Norway Spruce root systems on two different types of soil
• Douglas fir root systems on two different types of soil
• Sitka spruce
• Acacia etbaica from Tigray, northern Ethiopia
• Euclea racemosa from Tigray, northern Ethiopia
• Cordia africana from Tigray, northern Ethiopia

NB: you need a VRML plugin to view these root systems. You can go to the download page for links to nice VRML players.