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The position on the plant where the inflorescence arises. The inflorescences are produced from specialised floral nodes, the position of these nodes on a species varies and is of evolutionary significance.
|  | Terminal on a stem, tuber or pseudobulb: the inflorescence arises from the terminal nodes. |  | From an axil on a stem, pseudobulb or rhizome: the inflorescence arises from the axil of a leaf or bract. | 
|  | Breaking through leaf: the inflorescence breaks through a basal part of the leaf. |  | From centre of leafy rosette: the inflorescence arises from the centre of a rosette of leaves. | 
|  | From leaf base: the inflorescence arises from the base of a leaf. |  | Leaf opposed: in some epiphytes the inflorescence arises on a section of the stem opposite a leaf (not in the leaf axil). | 
|  | Base of pseudobulb: the inflorescence is produced from nodes at the base of a pseudobulb or stem. |