Celebrated in November
There are more than 200 varieties of potatoes available throughout the United States, and each is placed in one of seven categories: russet, red, white, yellow, blue/purple, fingering, and petite. Another 4,000 edible potato varieties can be found primarily in South America.
In October 1995, the potato became the first vegetable to be grown in space. NASA and the University of Wisconsin, Madison, created the technology with the goal of feeding astronauts on long space voyages, and eventually, feeding future space colonies.
"Yam" also refers to sweet potatoes that are grown in Louisiana. When the orange-fleshed, Puerto Rican variety of sweet potatoes was adopted by Louisiana producers and shippers, they were called "yams" to distinguish them from the white-fleshed sweet potatoes grown in other parts of the country. The yam reference became the trademark for Louisiana-grown sweet potatoes.