• A Text property defining a single value.
• Structure: base
• It is a calyx
• It is a property of structure constraint: calyx
• Character: orientation
• A position property
• A subproperty of involucre
• A Part of involucre
• A subproperty of phyllaries
• A Part of phyllaries

Types of calyx base orientation

None.

Parts of calyx base orientation

None.