Complex sentence: While some dropseed grasses make nice gardening plants, they are generally considered to make inferior pastures, but seeds of at least some species are edible and nutritious; they were used as food, for example, by the Chiricahua Apaches.
Split into simpler sentences: While some dropseed grasses make nice gardening plants, they are generally considered to make inferior pastures. On the other hand, seeds of at least some species are edible and nutritious; they were used as food for example by the Chiricahua Apaches.