Rosales ("Order: Roses, Figs, Nettles & Relatives") is an order of plants. There are 10583 species of "Order: Roses, Figs, Nettles & Relatives", in 288 genera and 9 families. It includes groups like Nettle Family, Elm Family, and Rose Family.
Definition: This organism produces this material or substance, either during its life or after death. A produces B if some process that occurs in A has output B.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)