Alkali chalice, West Indian-bluebell

Eustoma barkleyi Standley ex Shinners

Corollas 1.8–4(–4.5) cm, lobes elliptic to narrowly obovate. 2n = ca. 72.

Flowering year-round. Prai­ries, beaches, levees, roadsides, fresh to brackish or saline marshes, other open, moist to wet, often alkaline sites; 0–1900 m; Ala., Ariz., Ark., Calif., Fla., La., Miss., Nev., N.Mex., Okla., Tex.; Mexico; West Indies; Central America; introduced in South America (Venezuela) and Pacific Islands (Guam).