Hawthorne, Crataegus (/krəˈtiːɡəs/), (from the Greek kratos strength and akis sharp, referring to the thorns of some species) commonly called hawthorn, thornapple, May-tree, whitethorn, or hawberry, is a large genus of shrubs and trees in the family Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia and North America. The name “hawthorn” was originally applied to the species native to northern Europe, especially the common hawthorn C. monogyna, and the unmodified name is often so used in Britain and Ireland. The name is now also applied to the entire genus and to the related Asian genus Rhaphiolepis. The name haw, originally an Old English term for hedge, applies to the fruit.
The cayenne pepper, also known as the Guinea spice, cow-horn pepper, red hot chili pepper, aleva, bird pepper, or, especially in its powdered form, red pepper, is a cultivar of Capsicum annuum, which is related to bell peppers, jalapeños, paprika, and others. The Capsicum genus is in the nightshade family (Solanaceae). It is a hot chili pepper used to flavor dishes and named for the city of Cayenne, the capital of French Guiana.
Ginkgo biloba, commonly known as ginkgo or gingko (both pronounced /ˈɡɪŋkoʊ/), also known as the ginkgo tree or the maidenhair tree, is the only living species in the division Ginkgophyta, all others being extinct. It is found in fossils dating back 270 million years. Native to China, the tree is widely cultivated and was introduced early to human history. It has various uses in traditional medicine and as a source of food. The genus name Ginkgo is regarded as a misspelling of the Japanese gin kyo, “silver apricot”.