I cannot help with the identification of trees except to suggest you try here: Trees Forum - GardenWeb - the discussion of trees--how to grow them, recommendations for selections, sources for plants, etc..

The tree is a Rhus but the picture is too far away to id the species. The perennial is a Euphorbia. The Name That Plant Forum can probably give you the precise species.

Thank you, i manage to google it for precise species. But you helped me a lot :D :D