Monocoten

Monocot, short for monocotyledon, is a major clade of flowering plants known as the monocots. Along with the eudicots, monocots form the angiosperms. Monocots are characterized by having a single cotyledon in the embryo, parallel leaf venation, floral parts in multiples of three, and vascular bundles scattered throughout the stem. The root system is typically fibrous rather than a taproot. Pollen grains usually have a single aperture, a feature called monosulcate. In contrast to many dicots, monocots generally lack true woody secondary growth, although some groups show limited thickening.

The monocots encompass about 60,000 species across numerous families, including Poaceae (grasses), Orchidaceae (orchids), Arecaceae (palms), Liliaceae (lilies), Iridaceae (irises), and many others. They are globally distributed and dominate many habitats, especially grasslands, tropical forests, and wetlands. Economically important monocots include the major cereal crops—rice, wheat, maize, and barley—as well as sugarcane, and a wide range of ornamentals.

In plant systematics, monocots are a monophyletic lineage within angiosperms. They are believed to have originated in the early to mid-Cretaceous period and diversified into numerous orders, such as Poales, Asparagales, Liliales, and Arecales. Common diagnostic traits are the single cotyledon, parallel leaf venation, trimerous flowers, and scattered vascular bundles, which help distinguish monocots from the dicotyledon lineages.