Lore-wise, I think she could take that mushroom parent.
Using greater mobility, perhaps, but pure brute force? Highly doubted. These mofos' model is designed with permanent blood stain on their fist for a reason you know.
Agreeing with Carl here. If Ceobe had the range advantage, then sure. But she's about to get snuck up from behind and a single punch is all it takes. Ceobe, and like all casters, are known for being squishy.