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American Beachgrass (Ammophila breviligulata Fernald)

Also known as American marram grass, American beach grass.

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The common grass of sand dunes, both along the Atlantic coast of the northeastern US and the Great lakes. Introduced to the Pacific northwest, where it is invasive.

Range - Expand

Native or Not Present
Introduced or Not Present
Native or Expanded
Expanded or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.


Found on sand dunes in exposed conditions, especially areas exposed to wind and shifting sand. Tolerant of salt spray and burial in extensive sand.

Typically found as the first vegetation facing the water, and often the only vegetation where it is growing.

Ammophila breviligulata (Beach Grass) | Illinois Wildflowers (About This Site)

Ammophila breviligulata (American Beachgrass) | USDA PLANTS Database (About This Site)

Ammophila breviligulata | Go Botany (About This Site)

Ammophila breviligulata | CABI Invasive Species Compendium (About This Site)

Ammophila breviligulata | Biota of North America Project (BONAP) (About This Site)