Artichoke Artichoke The globe artichoke ("Cynara cardunculus" var. "scolymus") is a variety of a species of thistle cultivated as a food. The edible portion of the plant consists of the flower buds before the flowers come into bloom. The budding artichoke flower-head is a cluster of many budding small flowers (an inflorescence), together with many bracts, on an edible base. Once the buds bloom, the structure changes to a coarse, barely edible form. Another variety of the same species is the cardoon, a perennial plant native to the Mediterranean region. Both wild forms and cultivated varieties (cultivars) exist. This vegetable grows
Complete variety Complete variety In mathematics, in particular in algebraic geometry, a complete algebraic variety is an algebraic variety "X", such that for any variety "Y" the projection morphism is a closed map, i.e. maps closed sets onto closed sets. This can be seen as an analogue of compactness in algebraic geometry: a topological space "X" is compact if and only if projection along "X" is a closed map in any product "X" × "Y", equipped with product topology. The image of a complete variety is closed and is a complete variety. A closed subvariety of a complete variety is complete. A