-Plants (Kingdom Plantae)

-Vascular Plants (Phylum Tracheophyta)

-Flowering Plants (Subphylum Angiospermae)

-Dicots (Class Magnoliopsida)

-Gentians, Dogbanes, Madders, and Allies (Order Gentianales)

-Dogbane Family (Family Apocynaceae)

-Subfamily Rauvolfioideae

-Periwinkles, Devil Peppers and Kin (Tribe Vinceae)

-Devil Peppers (Subtribe Rauvolfiinae)

-Devil Peppers (Genus Rauvolfia)

-Be Still Tree (Rauvolfia tetraphylla)

This plant, Rauvolfia tetraphylla, of the family Apocynaceae, is native to Mexico, Central America, West Indies, and northern South America. Rauvolfia tetraphylla is usually a much-branched shrub growing up to 1 metre tall, but sometimes becoming a small tree up to 4 metres tall The plant is often gathered from the wild for local medicinal use and as the source of a dyestuff and ink.