Keywords: Iva imbricata-linedrawing.png Iva imbricata An illustrated flora of the northern United States Canada and the British Possessions Courtesy of Kentucky Native Plant Society 1913 Nathaniel Lord Britton 1859-1934 and A Brown PD-old-auto-1923 1934 Britton Brown Illustrated flora of the northern states and Canada Iva imbricata |