kingdom: Plantae >
subkingdom: Pteridobiotina Britton & Brown >
phylum: Tracheophyta >
class: Magnoliopsida >
order: Malvales Juss. ex Bercht. & J. Presl >
family: Malvaceae Juss. >
subfamily: Byttnerioideae Burnett >
genus: Byttneria Loefl. >
Peru; Bolivia (Beni, Cochabamba, La Paz, Pando, Santa Cruz); N-Brazil (Roraima, Pará, Amazonas, Acre); WC-Brazil (Mato Grosso, Mato Grosso do Sul)