Gad is another ordinary common noun in Hebrew. It means 'good luck'. We all want as much of it as we can get. So it is not surprising that it became a proper noun, the name of some people, a tribe of Israel, and a god. The god Gad was not ordinarily identified with Baal.
There currently are five recognized species in the Series Hexagonae, as the Louisiana iris group within the Genus Iris is called. They are: I. brevicaulis, I. fulva, I. hexagona, I. giganticaerulea and I. nelsonii.
Douglas iris is a member of the Iris family. Its botanical name is Iris douglasiana. Blooms normally display as a colour very similar to Lavender blue. It is a flower and is treated mainly as a perennial, so it grows best over a period of time (3 years and greater). Normally grows with a clump-forming habit. If you would like to attract birds to your garden, consider growing this plant. United States is believed to be where Douglas iris originates from.