Question: While Coreopsis is a flowering plant in the Asteraceae family, what family is the Leucanthemella in?

Context paragraphs:
Tithonia diversifolia: Tithonia diversifolia is a species of flowering plant in the Asteraceae family that is commonly known as the tree marigold, Mexican tournesol, Mexican sunflower, Japanese sunflower or Nitobe chrysanthemum.  It is native to Mexico and Central America but has a nearly pantropical distribution as an introduced species.  Depending on the area they may be either annual or perennial.  It has shown great potential in raising the soil fertility in soils depleted in nutrients.  Originating in Mexico; research has shown its potential in benefiting poor African farmers.  This plant is a weed that grows quickly and has become an option as an affordable alternative to expensive synthetic fertilizers.  It has shown to increase plant yields and the soil nutrients of nitrogen (N), phosphorus (P), and potassium (K).

Dendranthema boreale: Chrysanthemum boreale (or "Dendranthema boreale") is a flowering plant within the Asteraceae family and "Chrysanthemum" genus.  It used to be in the compositae family and many books still contain as such.  It is a perennial flowering plant that is often noted because of its yellow flowers.  It has 18 chromosomes at the diploid stage.

Rafinesquia neomexicana: Rafinesquia neomexicana is a species of flowering plant in the Asteraceae family (Commonly called the Sunflower Family or Daisy Family).  Common names include desert chicory, plumeseed, or New Mexico plumeseed.  It has white showy flowers, milky sap, and weak, zigzag stems, that may grow up through other shrubs for support.  It is an annual plant (completes its life cycle in a single season) found in dry climate areas of the southwestern deserts of the US and northwestern deserts of Mexico.

Chrysanthemum japonense: Chrysanthemum japonense (also known as "ashizuri noji-giku Ashizuri" (Japanese) meaning ""Point wild roadside daisy"" or gold / silver chrysanthemum in English) is a flowering plant within the Asteraceae family and "Chrysanthemum" genus and has a 27 pairs of chromosomes.  It is a perennial flowering plant with leaves between 3–5 cm in length and flower heads that are 3-4.5 cm with white petals.  Typically, flowering occurs in October to December annually.  It the floral emblem of Hyōgo Prefecture.

Coreopsis: Coreopsis is a genus of flowering plants in the family Asteraceae.  Common names include calliopsis and tickseed, a name shared with various other plants.

Cladanthus mixtus: Cladanthus mixtus, commonly known as the Moroccan chamomile, is a Mediterranean species of flowering plant in the Asteraceae family.  The plant is often considered a weed but is used to gather oils that are useful for calming people down and soothing the skin.  The species' oils change in composition depending on the area which it occupies.

Coreopsis bigelovii: Coreopsis bigelovii is a species of flowering plant in the daisy or sunflower family, Asteraceae, with the common names Bigelow coreopsis and Bigelow's tickseed.  It is endemic to California.

Coreopsis tripteris: Coreopsis tripteris is a North American species of flowering plant in the aster family, Asteraceae.  It is widespread across much of eastern and central North America from the Florida Panhandle west as far as eastern Texas and north to Québec and Ontario.  Its common names include tall tickseed, tall coreopsis, and Atlantic coreopsis.

Leucanthemella: Leucanthemella is a genus of flowering plants in chamomile tribe within the sunflower family.

Coreopsis palmata: Coreopsis palmata is a North American species of flowering plant in the aster family It is native to the central United States and central Canada, mostly the Mississippi Valley and adjacent areas from Louisiana north to Manitoba and east into southwestern Michigan.  Common names include stiff tickseed, wedgeleaf coreopsis, prairie coreopsis, prairie tickseed, and finger coreopsis.

Supporting paragraphs: Coreopsis Leucanthemella
Answer: chamomile tribe within the sunflower family