Four subspecies are recognized for T. palmarum (Isler and Isler 1987, Hilty 2011, Clements et al. 2013).
T. p. atripennis: Ranges from eastern Nicaragua to northern Colombia and extreme northwest Venezuela (Clements et al. 2013). This subspecies has a yellowish tinge that contrasts strongly with the hindneck. The body plumage is slightly paler and the wing is blacker. Occasionally a variant of T. p. atripennis has a strong violet tinge all over the entire body and wing coverts (Hilty 2011).
T. p. violilavata: Ranges from the Pacific slope of southwestern and western Ecuador (Clements et al. 2013). This subspecies is olive-gray to blue-gray with a violet tinge on the breast. The lesser wing coverts are glossed bluish and the greater coverts are a cerulean gray with an olive tinge. The flight feathers are slightly duller and less contrasting (Hilty 2011).
T. p. melanoptera: Ranges from eastern Colombia to northern Bolivia, the Guianas and Amazonian Brazil (Clements et al. 2013). This subspecies is the darkest. It is mainly a smoky grayish-olive with a brownish to yellow tinge. The forehead and crown are strongly tinged yellow and the upperwing-coverts are yellow olive (Hilty 2011).
T. p. palmarum: Ranges from eastern and southern Brazil to eastern Bolivia and Paraguay (Clements et al. 2013). This is the nominate subspecies. See Detailed Description for appearance.