Tipos: Bolivia. Depto. Santa Cruz. Chiquitos. Between El Tinto and Cerro Concepción, along road from Pailon to San José de Chiquitos. At the edge of scrub by road, 300 m s.m., 27 Dic 1999, J. R. I. Wood & J. D. Goyder 15652 (holotipo, K 000529375; isotipo, US 00680195)
