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The eudicots or eudicotyledons are flowering plants that have two seed leaves (cotyledons) upon germination. [1] The term derives from dicotyledon (etymologically, eu = true; di = two; cotyledon = seed leaf). Historically, authors have used the terms tricolpates or non-magnoliid dicots.
The rosids are a large group of eudicotyledons containing approximately 70 000 species, [27] more than a quarter of the total number of angiosperm species. [28] It has been subdivided into some 16 to 20 orders, depending on the circumscription and classification adopted. These orders, in turn, comprise about 140 families. [29]
This page was last edited on 26 January 2019, at 14:21 (UTC).; Text is available under the
Dicotyledon plantlet Young castor oil plant showing its prominent two embryonic leaves (), which differ from the adult leaves. The dicotyledons, also known as dicots (or, more rarely, dicotyls), [2] are one of the two groups into which all the flowering plants (angiosperms) were formerly divided.
Foliage of Araucaria heterophylla (Norfolk Island Pine), a well-known Norfolk Island endemic. This is a list of vascular plants that are indigenous to, or naturalised on, Norfolk Island.
The Brassicales (or Cruciales) are an order of flowering plants, belonging to the malvid group of eudicotyledons under the APG IV system. [2] One character common to many members of the order is the production of glucosinolate (mustard oil) compounds.
In eudicotyledons, pith is located in the center of the stem. In monocotyledons, it extends only into roots. [1] The pith is encircled by a ring of xylem; the xylem, in turn, is encircled by a ring of phloem.
Magnoliids, Magnoliidae or Magnolianae are a clade of flowering plants.With more than 10,000 species, including magnolias, nutmeg, bay laurel, cinnamon, avocado, black pepper, tulip tree and many others, it is the third-largest group of angiosperms after the eudicots and monocots. [3]