Synonyms: Echites bangii; Echites hulkianus; Echites laurentiae-disca; Echites leptolobus; Echites nutans; Echites quinquangularis (homotypic); Echites rubrovenosus; Guachamaca toxicaria; Haemadictyon acutifolium (homotypic); Haemadictyon caliginosum; Haemadictyon nutans; Haemadictyon venosum; Prestonia acutifolia; Prestonia acutifolia var. latissima; Prestonia marginata (heterotypic); Prestonia nutans; Prestonia pachyphylla; Prestonia pickelii; Prestonia simulans; Prestonia venosa; Temnadenia leptoloba; Temnadenia quinquangularis (homotypic)