Pepal
A floral diagram illustrates:
Key floral whorls – \(\text{calyx}\), \(\text{corolla}\), \(\text{androecium}\), and \(\text{gynoecium}\) – are depicted in concentric circles from outermost to innermost.
The combined perianth (outer floral envelope) comprises undifferentiated \(\text{sepals}\) and \(\text{petals}\). When these structures are morphologically similar, each unit is termed a \(\text{tepal}\) – the correct designation for the floral elements shown in the diagram.