1. Tall spruce with blue-green needles and dense conic crown; older trees become columnar with lower branches sweeping downward
   - Colorado spruce, Colorado blue spruce, silver spruce

Type of: spruce

Encyclopedia: Picea pungens

• rust-brown
• rust-colored
• rust-coloured
• rust-free
• rust-red
• rust-resistant
• Rustbelt
• rusted
• rustic
• rusticate
• rustication
• rusticism
• rusticity
• rustily
• rustiness
• rusting
• rustle
• rustler
• rustless
• rustling
• rustproof
• rustproofed
• rusty
• rusty blackbird
• rusty grackle