Bolboschoenus robustus (Pursh) Soják
Habitat: Slightly brackish coastal shores, estuaries, marshes. [Tidal wetland (non-forested wetland)]
Range: Nova Scotia to Texas, California
Phenology: Fruiting in mid July through October.
Synonyms: Schoenoplectus robustus (Pursh) M.T. Strong; Scirpus maritimus L. var. macrostachyus Michx.; Scirpus robustus Pursh.
Known Distribution in Maine: This rare plant has been documented from a total of 3 town(s) in the following county(ies): Cumberland, Sagadahoc, York.
Reason(s) for rarity: Habitat is scarce.
Conservation considerations: Alteration of hydrology to brackish shores and marshes may be detrimental to populations.