CALROSE RICE - refers to the medium-grain rice that is grown in California. ”Cal' as in a product of California, and 'rose” indicates medium-grain rice. Developed by the Japanese-Americans in 1948, they have been used as reasonably convenient and inexpensive rice of choice for many years in the US.
HOW CALROSE RICE IS DIFFERENT - medium-grain varieties, such as Calrose - the basic staple rice you'll see in the supermarket, are in the middle, they're not as sticky as the shorter grain, and not as fluffy as the longer grain.