ICSE

When the perianth is non-green, it is described as Petaloid Perianth.

When the perianth is green like the sepals, it is described as a Sepaloid Perianth.

In some cases, the sepals and petals look very similar and cannot be differentiated from one another. They are then collectively called perianth.

In some cases, the petals and sepals look very similar and cannit be differentiated from one another. Then they are called tepals.

The non-essential parts of a flower are simply the helping parts that either protect the reproductive parts of a flower or make the flower attractive for pollination.

The essential parts of a flower are those that are directly concerned with reproduction.

If one or more set of florals whorls are missing, the flower is calles incomplete flower.

A complete flower is one that contains all four floral whorls.

Flower has 4 whorls such as: Calyx Corolla Androecium Gynoecium

The thalamus is the stalk’s tip, which is enlarged to form a cup shape.