Senecio jacobaea (Tansy ragwort)

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Asteridae	A large class that encompasses asters
Order	Asterales	Flowering plants with a central disk flower and surrounding petals, like daisies
Family	Asteraceae	The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
Genus	Senecio	From senex, “old man,” referring to the gray hairs on the seeds
Species	jacobaea	An epithet applied to plants and deriving from two different possible sources: (1) from St. James (Jacob or Jacobus), one of the 12 Apostles; or (2) referring to the island of St. Iago in the Cape Verde Islands