The phrase "crop plants" is correct and can be used in written English.
For example, "Agricultural scientists are working to develop new and hardier varieties of crop plants to increase yields."
Few sedges are crop plants.
The technique works in crop plants, too.
The collection also includes wild relatives of crop plants.
Over the centuries, we have deliberately bred the genetic diversity out of our crop plants.
They initiated or encouraged changes that turned weedy grasses into crop plants like rice and corn.
As much as art or language, crop plants are the common property of humanity.
Most seed collections concentrate on crop plants, but Wakehurst Place specializes in wild ones.
Genetic modification offers plant breeders the tools to make old crop plants do spectacular new things.
The scarab beetles (Scarabaeidae) include many important pests of crop plants, lawns, and pastures.
They are designing animals (and also crop plants) as factories for making therapeutic proteins.
The first human settlements that practiced farming appear to have selected crop plants with favourable qualities.
