At first glance, musk mallow (Malva moschata) seems like a highly attractive plant. Its blooms are a pretty pink, and crushing its foliage leaves your fingers covered in a pleasant, musky fragrance.

Musk said the Volt is "OK but not great" and the Leaf's "battery pack range is just way too low." Of the Volt, Musk said that Chevy "sort of created something that's a bit of amphibian," adding ...