What's the difference between i.e. and e.g.?
any member of about 150 species of the genus Orobanche and its family (Orobanchaceae, order Lamiales), which contains 99 genera (including Boschniakia) and about 2,000 species in all. All are parasitic herbs, with little green tissue (i.e., they have little chlorophyll and do not produce their food photosynthetically to any great extent); instead, they draw nourishment from the roots of other plants by means of small suckers