Herbs, perennial, scapose, from corms with enlarged storage roots. Leaves basal and cauline; blade 2-faced, very narrowly linear to narrowly oblong or elliptic, base surrounded by fibrous leaf bases from previous year. Inflorescences racemose or paniculate, (1-)2-4 flowers per node. Flowers bisexual or pseudohermaphroditic-staminate, ± erect to pendulous; tepals strongly reflexed to spreading, distinct, yellow [orange, white, or cream], 3-veined, ± elliptic, equal; stamens 6; filaments linear to clavate, bearing scales at right angles to axis of filament [scaleless]; anthers connate into cone or distinct, dorsifixed near base, yellow; ovary superior, ellipsoid, ovules 8+ per locule; style 1. Fruits capsular, broadly to narrowly oblong, dehiscence loculicidal. Seeds black, irregularly compressed and folded, colliculose. x = 8.
More than 60 species of Echeandia occur in North America south of the United States. Two of those reach their northern distributional limits in the southwestern United States. The third species included here is known only from the southern tip of Texas.
This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].