Asparagus, orchids and relatives are an order of monocotyledonous flowering plants. Almost every habitat on Earth has species from within this order. This is not surprising as it contains the world's largest flowering plant family, orchids, which comprises more than 22,000 species. Several agriculturally and horticulturally important families are contained within this order, from the onion and asparagus to crocuses and gladioli.
Scientific name: Asparagales
The shading illustrates the diversity of this group - the darker the colour the greater the number of species. Data provided by WWF's Wildfinder.