Echeandia is a genus placed in the in the Anthericaceae family by the Angiosperm Phylogeny Group II, 2003. Later revisions dissolved Antheriaceae and put Echeandia in Agavoideae subfamily of Asparagaceae. Plants in this genus are closely related to Anthericum and are perennials growing from corms with enlarged storage roots. Echeandia has fused stamens whereas Anthericum has spreading/free stamens. There are around 80 species occurring from the southwestern United States through central America to South America, with the majority of the species from Mexico. Flowers are usually yellow.
Echeandia formosa occurs from southeast Mexico to central America. The plant photographed below by Alessandro Marinello was collected in Guatemala at Agua Volcano at 2500 meters.
Echeandia parviflora is native to central Mexico to Guatamala. The photos below were taken by Dale Denham-Logsdon in Mexico near Ixtapan de la Sal, Estado de Mexico, where it blooms in late summer.