Stigmaphyllon ciliatum is often listed as being from Central America but it grows as far south as Brazil. It was in fact noted by Joseph Banks when he arrived at Rio de Janeiro, Brazil in 1768. The genus name comes from the Latin words 'stigma' for the receptive apex of the pistil of a flower and 'phyla', meaning "leaf" for the leaf-like stigma in the genus and the specific epithet is a reference to the hair-like projections along the leaf margins.
We have grown this plant since 1999 and that year also originally received the related Mascagnia macroptera as a species of Stigmophylon, which it certainly resembles. We also grow Stigmaphyllon littorale. These three plants seem confused in the nursery trade so we have a comparison image showing these three plants together on our Mascagnia and Stigmaphyllon Comparison Page.
This description of Stigmaphyllon ciliatum is based on our research and our observations of this plant growing in the nursery, in our own garden and in other gardens. We would appreciate getting feedback of any kind from those who have any additional information about this plant, particularly if they disagree with what we have written.