Asparagales

Asparagales is an order of monocot flowering plants that includes orchids, asparagus, irises, amaryllises, and numerous other families.

Monocot: A flowering plant whose seed typically contains one embryonic leaf, or cotyledon. Asparagales belongs to this major flowering-plant lineage.
Phylogenetic tree: A branching diagram representing hypotheses about evolutionary relationships among organisms. Asparagales’ boundaries reflect inferred relationships among its families.
APG IV system: A 2016 classification of flowering plants produced by the Angiosperm Phylogeny Group. This widely used system recognizes the modern circumscription of Asparagales.
Asparagus: A perennial flowering plant whose young shoots are widely eaten as a vegetable. The edible crop gives Asparagales its familiar name.
Angiosperm: A flowering plant that produces seeds enclosed within an ovary, usually developing into a fruit. Asparagales is one order within the flowering plants.
Molecular phylogenetics: The study of evolutionary relationships using comparisons of DNA, RNA, or protein sequences. Molecular data have helped resolve relationships within the order.
Angiosperm Phylogeny Group: An international collaboration of botanists that develops phylogenetic classifications of flowering plants. Its successive classifications reshaped the recognized families of Asparagales.
Onion: A bulb-forming plant cultivated worldwide for its pungent edible leaves and storage organs. Onion is a major food crop in the Asparagales family Amaryllidaceae.
Orchidaceae: The orchid family, a large and diverse family of flowering plants known for specialized flowers. Orchids form one of the largest families within Asparagales.
Phytomelan: A black, carbon-rich substance deposited in the seed coats of some flowering plants. Its presence in many Asparagales seeds has been used as a characteristic feature.

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