Pumpkin seed: (noun) Pumpkin seeds can be found in some pet bird seed mixes or taken from a pumpkin and toasted for a yummy parrot treat. Pumpkin seeds are either flat and darkish green or encased in a whitish yellow husk. There are also pumpkin varieties that produce the seeds without the husks. Nutrients in pumpkin seeds include manganese, magnesium, phosphorus, tryptophan, iron, copper, vitamin K, zinc and protein. So what exactly is a pumpkin? The pumpkin is a a fruit that belongs to the gourd family Cucurbitaceae. This spreading vine, flowering plant’s genus is Cucurbita. In this genus, there are four species common in North America: pepo (Jack O’ Lantern type), maxima (yellowish, e.g.big max pumpkin), moschata (canning pumpkins) and mixta (used for pies). Pumpkins are thought to have originated in North America. In fact, pumpkin seeds dating between 7,000 and 5,500 B.C. were found in Mexico.