When it comes to Linnaean taxonomy, few of us outside of the related fields know how many species it covers (for the record, taxonomists estimate there have been hundreds of millions of species of life forms on this planet up to now). The number of species we are familiar with makes up less than 1% of even the known species. Filming on location can produce a fair sampling of the local flora, including the species no one much has heard of, but the plants named will still come from a small pool. A Sub-Trope of Small Reference Pools A Super-Trope to Stock Dinosaurs.