Swallenia is a rare genus of plants in the grass family, found only in Death Valley National Park, California.

This genus was named for American botanist Jason Richard Swallen (1903-1991).

The species was named for American philanthropist and paleontological collector Annie Montague Alexander.

[6][7] Swallenia alexandrae is a coarse, tufted perennial grass which grows in sand from thick rhizomes.

[9] The main threat to the species survival has been off-roading, which is no longer permitted in its habitat.