Monographs Details: Tachia grandifolia Maguire & Weaver var. grandifolia
Authority: Maguire, Bassett. 1978. The botany of the Guayana Highland--part XI. Mem. New York Bot. Gard. 32: 1-391.
Family:Gentianaceae
Description:Distribution and Ecology - Distribution. Low-altitude catinga or sometimes flooded forests or adjacent terra firma, approaches to Serra da la Neblina.

Discussion:la. Tachia grandifolia Maguire & Weaver, var grandifolia Type. In catinga forest between Missao Salesiana and Serra Pirapucu [Neblina], Rio Maturaca, Rio Cauaburi-Negro, 400-800 m elev, Amazonas, Brazil, 13 Jan 1966, Nilo T. Silva & Umbelino Brazdo 60824 (holotype NY, isotypes IAN, RB, US, K).