There are hundreds of species of the February birth flower, the iris. The iris is a perennial herb. An iris can be grown from a creeping rhizomes or a bulb. The bulb is usually used in drier climates. The iris has been valued since ancient times. There is a flower on the sphinx in Egypt believed to be an iris. Another iris appears on a bas-relief from the 28th Egyptian Dynasty. In ancient times iris roots were used in perfume and medicine. The fleur-de-lis is a stylized iris, which was used much in heraldry. The February birth flower, iris, is Greek for "rainbow".
Source: Birth Flowers Guide