Step 1: Understanding the floral formula
The mustard plant belongs to the family Brassicaceae, and its floral formula is:
\[
Ebr Ebrl \oplus ♂ ♀ K_{2+2} C_4 A_{2+4} \overline{G} (2)
\]
Explanation:
Ebr Ebrl: Ebracteate and ebracteolate
\(\oplus\): Actinomorphic
♂ ♀: Bisexual
\(K_{2+2}\): Calyx with four sepals arranged in two pairs
\(C_4\): Corolla with four petals
\(A_{2+4}\): Six stamens (tetradynamous)
\(\overline{G} (2)\): Superior ovary, bicarpellary
Final Answer:
\[
Ebr Ebrl \oplus ♂ ♀ K_{2+2} C_4 A_{2+4} \overline{G} (2)
\]