Matins (page 2): "by the mailbox, leaves / of the divided birch tree folded, pleated like fins."
Family: Betulaceae
Sun requirement: Sun
Soil requirement: Moist, well-drained
Notes: Birch have white bark that peels almost like paper, and which is often used as fire starter and was used in canoe construction; The leaves have notable fall color.
Sources: [1]