Spanish or rocambole garlic. A hardneck variety having a bulb with a coiling flower stalk and used for seasoning.
Sand leek. According to garlic grower Ron Engeland, sand leeks are edible but seldom cultivated, and have a shorter flower stalk and fewer and more inconsistently shaped cloves than Rocambole garlic with which they are often confused. Sand leeks also have a dark violet bulb wrapper.