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Juncus roemerianus
Also called Roemer's Rush, Black Rush, Needle Rush, Needle Grass Rush, Black Needlerush
Juncus roemerianus is a species of flowering plant in the rush family known by the common names needlegrass rush, black rush, needlerush, black needlerush and Roemer's rush. It is native to North America, where its main distribution lies along the coastline of the southeastern United States, including the Gulf Coast. It occurs from New Jersey to Texas, with outlying populations in Connecticut, New York, Mexico, and certain Caribbean islands.
Juncusol is a 9,10-dihydrophenathrene derivative found in J. roemerianus.
This is a common and ecologically important plant in its range, often dominating salt marshes and estuaries. In northwestern Florida perhaps 60% of all the salt marshes are covered in this species of rush. This species and smooth cordgrass (Spartina alterniflora) are the dominant plants in Mississippi tidal marshes. These two species are often found together, with S. alterniflora occupying lower levels of the marsh and J. roemerianus growing in the mid-level and upper reaches of the marsh. In river estuaries it can occur 10 to 15 miles inland.
Dwarf Rush · Rush · Tapertip rush · Sharpflower rush · Spiny rush · Northern green rush · Antarctic rush · Arctic rush · Jointleaf rush · Austral Rush · Mexican Rush · Baltic Rush
Text excerpted from the Wikipedia article Juncus roemerianus by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
