Ammophila breviligulata Fernald - Beach Marram Grass


 

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Ammophila breviligulata - (image 1 of 4)

 

Taxonomy

Family: Poaceae

Habitat

Dunes and sandy shores, usually near the beach where the sand is actively moving.

Associates

On beaches in the Great Lakes it occurs with Calamovilfa longifolia, Cakile edentula, and Corispermum hyssopifolium

Distribution

Great Lakes, Lake Champlain, and the Atlantic coast from New England to NC.

Morphology

Perennial grass to 1 m. Culms and sheaths glabrous; ligules 1-3 mm, ovate or truncate; blades to 8 mm wide, scabrous above. Inflorescence dense, to 40 cm long; glumes subequal, to 1.5 cm long, scabrous on the keel or throughout; lemma shorter than the glumes; awn 2 mm, hairy.

Notes

Flowers July to September

Wetland Indicator: Upland

This is an important species for dune stabilization. A related marram grass introduced from Europe, A. arenaria (L.) Link, sometimes occurs with this species on dunes. It has more glaucous leaves and a ligule longer than 1 cm.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY

 

Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.

 


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Michael Hough 2004