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Marram grass forms a culm that remains short (~2") if no inflorescence is produced but reaches heights of 30" with an inflorescence. Culms produce a 6-12" long spike-like panicles of single-flowered spikelets each 9-15 mm long. Flowers are wind-pollinated, as is common in grasses. This plant is endangered in Illinois and is restricted to beaches along the Lake Michigan shoreline where it is often the dominant grass.
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Ammophila

Ammophila breviligulata

marram grass [Blooms: Jul-?]

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I want to acknowledge the work of a friend and colleague, Dr. Fred Donner. We both share a passion for the flowers in Jackson Park. Fred's website (jacksonparkwildflowers.org) inspired me to build my own website and database; use and enjoy them both.

I am also pleased to thank my ninja web gurus and coders, Lindsey Young and Stefanie Engstrom. This site would not exist without their herculean labors.

Copyright 2026 © Michael LaBarbera

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