. . . . . . . "The iris, an ideal hardy perennial written and published by members of the American iris society"@en . "The iris, an ideal hardy perennial : written and published by members of the American iris society"@en . . "The iris, an ideal hardy perennial"@en . . "The Iris : an ideal hardy perennial"@en . . . . "Iris, an Ideal Hardy Perennial" . . .