They belong among the rosid group of dicotyledons. It is secreted at wounded site of dicotyledons. Kaempferol has also been identified in both Dicotyledons and Monocotyledons of Angiosperms. The eudicots are the largest clade within the dicotyledons. He was the first botanist to appreciate the distinction between monocotyledons and dicotyledons. There are 701 "Dicotyledons" distributed among 113 families and 420 genera. Cronquist's system places flowering plants into two broad classes, Magnoliopsida (dicotyledons) and Liliopsida (monocotyledons). He later placed the family among the Dicotyledons. The Solanales are an order of flowering plants, included in the asterid group of dicotyledons. The Cucurbitales are an order of flowering plants, included in the rosid group of dicotyledons. The Dipsacales are an order of flowering plants, included within the asterid group of dicotyledons. The Cronquist system placed the Nymphaeales in subclass Magnoliidae, in class Magnoliopsida [=dicotyledons]. This nematode is extremely polyphagous, attacking both monocotyledons and dicotyledons. It is easy to germinate, having two-lobed dicotyledons. The family belongs to the order Solanales, in the asterid group and class Magnoliopsida (dicotyledons).