What does ALLIOIDEAE stand for? 

Allioideae

Allioideae is the botanical name of a monocot subfamily of flowering plants in the family Amaryllidaceae, order Asparagales. It was formerly treated as a separate family, Alliaceae. The subfamily name is derived from the generic name of the type genus, Allium. Successive revisions of the influential Angiosperm Phylogeny Group classification have changed the circumscription of the family. In the 1998 version, Alliaceae were a distinct family; in the 2003 version, combining the Alliaceae with the Agapanthaceae and the Amaryllidaceae sensu stricto was recommended but optional; in the 2009 version, only the broad circumscription of the Amaryllidaceae is allowed, with the Alliaceae reduced to a subfamily, Allioideae. Note that quite a few of the plants that were once included in family Alliaceae have been assigned to the subfamily Brodiaeoideae. Some of the species of Allium are important food plants for example onions, chives, garlic, and leeks. Species of Allium, Gilliesia, Ipheion, Leucocoryne, Nothoscordum, and Tulbaghia are cultivated as ornamentals. Thirteen of the total of about 20 genera are endemic to temperate South America. Nothoscordum ranges from Argentina to Canada. Allium is indigenous to most of North America, Eurasia, and North Africa.

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