Almost all the orchid flowers are zygomorphic (bilaterally symmetrical), in simple meaning, a flower that can be divided into 2 equal parts by cutting through the middle.
In all the cases the sepals and petals are spreading or rarely arranged forward. However, in a few species the lateral sepals of the flowers are not spreading, but are joined and lying underneath the lip. Joined or fused sepals are termed synsepal.
Post 45 – 02/January/2021