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.
The genus Iris is the predominant member of the Iridaceae family in the Northern Hemisphere. There are about 300 species worldwide, occurring in North America, Asia and Europe. At least one species, Iris setosa, is circumpolar, occurring in Sibera and in Canada.