I am yellow but not the sun riddle
![Riddles I am yellow but not the sun riddle](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_gGktKWGFsTVK9gOmKxD0ah0mQImq_IbgvSm7RBmina71gGPYfgarJWotAC39RkS4HQcx4BQvPBRsf8vXib4PRxsFab53lj4WpWAuZ0YtE9eFpy2p-pB8YeLWpl62sXA2jzO5j6ro_I2X_r3C2iG2a-NPxpB0ZQx6b4qVj0H5ZZNvbezRByGHQQjHyw/s16000/I%20am%20yellow%20but%20i%20am%20not%20the%20sun%20riddle-min.jpg)
I am yellow but I am not the sun.
I grow in a field but I am not a sunflower.
I am found on an ear but I am not a piece of jewellery.
I go well with butter but I am not a slice of toast.
I am associated with cob but I am not a web.
What am I?