the most basal extant flowering plant. Paleodicots (sometimes spelled "palaeodicots") is an informal name used by botanists (Spichiger & Savolainen 1997...

eudicot flower is typically four or five. The merosity of a monocot or palaeodicot flower is three, or a multiple of three. The development and form of...

(type genus Rosa), or as several separate classes. The remaining dicots (palaeodicots or basal angiosperms) may be kept in a single paraphyletic class, called...