Description : Cynoglossum - Hound's Tongue (Cynoglos'sum)
Last Answer : DESCRIPTION: This is a group of hardy annuals, biennials and perennials found wild in China and India. They grow from 18 inches to 3 feet high. C. nervosum is a perennial that forms clumps of oval to oblong, ... . VARIETIES: C. nervosum; C. amabile; C. officinale; C. Blue Gem; C. annual blue.