Puccinellia lucida is a perennial grass which grows in south-eastern Canada and occasionally elsewhere in the United States.

Its specific epithet lucida means "shining", referring to the plant's lustrous glumes.

Its lemmas are 3–4 mm (0.12–0.16 in) long, broadly ovate, acute, and are pubescent especially towards their base where hairs become longer.

From the third species P. lucida differs in its involute leaves, diffuse panicle, pale spikelets, and longer lemmas.

[2] Puccinellia lucida occurs in saline marches and coastal sands along the lower St. Lawrence River in Quebec, but rare populations have also been found in Wyoming to British Columbia and into California.