Clethra alnifolia (Coastal Sweetpepperbush) is a species of shrub in the family clethras. They have a self-supporting growth form. They are listed as threatened by COSEWIC. They are native to The Contiguous United States, United States, North America, Canada, Eastern North America, and Asia. They have simple, broad leaves, white flowers, and capsule fruit. Flowers are visited by Horace's Duskywing, Eumenes fraternus, Katydid Wasp, and Scolia dubia dubia. Individuals can grow to 16 feet.
EOL has data for 79 attributes, including: