Which of the following weed is not associated with pea?

Correct option is D

Weeds commonly found in pea fields include:
Cyperus rotundus (Nutgrass)
Chenopodium album (Lamb’s quarters)
Fumaria parviflora (Fumitory)
However, Argemone mexicana (Mexican prickly poppy) is not commonly associated with pea crops. It is more prevalent in wastelands and roadsides rather than agricultural fields.
Thus, the correct answer is (d) Argemone mexicana.