Related Clues:

• Cedar or sequoia
• Copse unit
• Diagram of possibilities
• Part of an arbor
• Shoe structure
• You won't hear my bark!
• Sycamore, eg
• Absorber of carbon dioxide
• Elm or tamarack
• Willow or walnut
• Walnut, for one
• Cherry or pear
• Oak, say
• It sets down roots
• Mango or persimmon