T. heteromorpha var. heteromorpha is found above this elevation, to about 3000 m altitude. Populations of a large, short-caulescent form of T. tectorum var. tectorum are also found in the surrounding steep hillsides, together with T. mima var. chiletensis Rauh, which had only been previously found in the Department of Cajamarca. This new species shares the valley system of Rio Maranon with T. chusgonensis, but, in contrast to the latter, comes from the more southern province of Ancash.
In this valley, the following Tillandsia and Racinaea species are still located upstream at elevations up to 3300 m: a small, very compact form of T. cacticola L.B. Sm., the only known location where this species grows on rocks, the normally epiphytic T. aurea Mez, T. capillaris Ruiz & Pav., as well as Racinaea pallidoflavens (Mez) M.A. Spencer & L.B. Sm. —SeeDie Bromelie
