Unfortunately, I need to attach “unknown cultivar” alongside the name as it may be a cultivar that I’m not familiar with; there are at least sixty selections in cultivation, after all. For a gardening perspective, read this article on nasturtium by Dr. William Welch of Texas A&M University.
The family Tropaeolaceae is monotypic, which, if you’ll recall from an earlier entry, means that it contains only the one genus, Tropaeolum. It is distributed natively in the New World, from Mexico south to the southern tip of South America.
Botany resource link: Why the Banana Needs Protection via Jeremy Cherfas. You may have seen media reports a few months ago about the impending extinction of bananas. As is most often the case, things are a little more nuanced than that.