Quinoa

This South American plant produces a grain-like seed that has been used by humans for over 6000 years.   Quinoa's protein contains a full set of human essential amino acids.  It is is gluten-free and is a good source of dietary fiber, phosphorus, magnesium and iron.  With an oil content approaching 6% and protein around 15% this is as nutritious as it is tasty.  Under optimum conditions it can sprout overnight.  When young it looks and grows like it's relative, the weed, lamb's quarters.  Seed heads reach 6 feet or more by fall, packed with seeds easily harvested, threshed and winnowed.
 (Chenopodium quinoa) 100 seeds per packet