https://www.pollenlibrary.com/Local/Specie/Triglochin+maritima/in/Miami%20County/OH/
Seaside Arrow-Grass (Triglochin maritima) Species Details and Allergy Info, Miami county, Ohio
Triglochin maritima Research Information. Seaside Arrow-Grass allergy information and photos, Miami county, Ohio
arrow grasstriglochin maritimamiami countyseasidespecies
https://www.wildflowers.uk/shop/p/sea-arrow-grass
Sea Arrow Grass | British Wild Flower Plants
Triglochin maritima Perennial for coastal areas. 15-30cm Brown flowers July-September.
sea arrowwild flowergrassbritishplants