Jiang He might have transmigrated to a world of Qi and martial arts, but the System that he got only provided him with... seeds. 
"Hold on, System. Aren't these just... peas? Not only are they inedible, but I'm supposed to throw them far, far away?" 

Everybody is Kung Fu Fighting, While I Started a Farm

There was a pang of fury in Doctor Zhou's mind just then.

He weighed the plastic bag he was holding to be at least seven to eight catties… and the thing inside was a spirit ginseng? What nonsense was this? Not even most radishes were this large, please!

Being a veteran Chinese medicine doctor, how could Doctor Zhou not know his ginseng?

Moreover, were those not Head and Kidney Pills?

They were more health supplements than medicine, were they not? They could be found in any pharmacy, and cost only several dozen bucks per box—and there would be one free box for every three boxes bought.

And Minister Wang was supposed to be healed with health supplements and carrots?

Martial Yuan Spirit