DrewriaDrewria potomacensis is a Cretaceous megafossil member of the Gnetales, from the Potomac Group, hence its name. It was possibly a shrub. It is the only known species in the genus Drewria.DescriptionIts stems were slender, with opposite and decussate leaves. The leaves were oblong and measured up to long. Its reproductive structures consisted of short, loose spikes arranged in dichasial groups of 3.