Lysichiton americanus, also called western skunk cabbage (USA), yellow skunk cabbage (UK), American skunk-cabbage (Britain and Ireland) or swamp lantern, is a plant found in swamps and wet woods, along streams and in other wet areas of the Pacific Northwest, where it is one of the few native species in the arum family.
 The plant is called skunk cabbage because of the distinctive "skunky" odor that it emits when it blooms.
 This odor will permeate the area where the plant grows, and can be detected even in old, dried specimens.
 The distinctive odor attracts its pollinators, scavenging flies and beetles. Although similarly named and with a similar smell, the plant is easy to distinguish from the eastern skunk cabbage ("Symplocarpus foetidus"), another species in the arum family found in eastern North America.
Henry (Hendrik), Lord of Bréderode (December 1531 – 15 February 1568) was a member of the Dutch noble family Van Brederode and an important member during the Eighty Years' War.
 He was named the "Grote Geus" or the "big beggar".
Lysichiton is a genus in the family Araceae.
 These plants are known commonly as skunk cabbage or less often as swamp lantern.
 The spelling Lysichitum is also found.
 The genus has two species, one found in north-east Asia (Japan and Russian Far East), the other in north-west America (Aleutians to Santa Cruz County in California).
Achillea ageratum, also known as sweet yarrow, sweet-Nancy, or sweet maudlin, is a flowering plant in the sunflower family, native to southern Europe (Spain, Portugal, France, Italy, Greece, Balkans).
 It is cultivated in many places for its pleasant fragrance and sparingly naturalized in a few places outside its native range.
Ageratum iltisii is a species of flowering plant in the Asteraceae family.
Eupatorieae is a tribe of over 2000 species of plants in the aster family.
 Most of the species are native to tropical, subtropical, and warm temperate areas of the Americas, but some are found elsewhere.
 Well-known members are "Stevia rebaudiana" (used as a sugar substitute), a number of medicinal plants ("Eupatorium"), and a variety of late summer to autumn blooming garden flowers, including "Ageratum" (flossflower) and "Conoclinium" (mistflower).
Calloideae is a monotypic subfamily of flowering plants in the Araceae family.
 The single genus in the family is Calla, although in the past under Engler's description of Araceae it included four genera, namely Lysichiton, Symplocarpus, Orontium, and Calla.
 The subfamily was subsequently made monotypic and given a single tribe, Callea.
 Species in Calloideae are often found in marshy habitats in the northern hemisphere.
 Trichosclereids are not found in the flowers.
Orontioideae is a subfamily of flowering plants in the Araceae family.
 The subfamily consists of three genera namely, "Lysichiton" (one to two species of skunk cabbage from North America and Asia), "Orontium" (golden club, one living species from eastern North America and two extinct species known from fossils), and "Symplocarpus" (several species of skunk cabbage from North America and Asia).
 Characteristics of Orontioideae include medium sized pollen grains and subterranean stems.
 Species in the subfamily have a base chromosome number of X=13.
Ageratum ( ), (whiteweed in the USA), is a genus of 40 to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, tribe Eupatorieae.
 Most species are native to Central America and Mexico but four are native to the United States.
Lenaert Jansz de Graeff (Amsterdam 1530/35 – before 1578), was a member of the family De Graeff and the son of Jan Pietersz Graeff, a rich cloth merchant from Amsterdam.
 Lenaert Jansz de Graeff was one of the leaders of the Protestant Reformation at Amsterdam, friend of Henry, Count of Bréderode, the "Grote Geus", and perhaps ident with "Monseigneur de Graeff", a captain of the Sea Beggars during the Capture of Brielle.

Question: Is Lysichiton and Ageratum geus in the same family?
Answer: no