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r <br /> Hairy willow-herb Identification and Management <br /> r <br /> �� �► � � airy willow-herb is native to <br /> Eurasia and North Africa and <br /> was likely introduced to the U.S. <br /> as an ornamental. Some reports <br /> suggest it may have also arrived in <br /> ship ballast.The plant is typically <br /> found in water-logged soils and <br /> easily tolerates inundation. It does <br /> not tolerate shaded areas during <br /> seedling establishment, but once <br /> established can be somewhat ` <br /> shade-tolerant. Infestations can <br /> clog small waterways and displace <br /> ' native vegetation, increasing bank ` <br /> erosion and degrading wildlife <br /> habitat. Hairy willow-herb spreads <br /> Hairy willow-herb (Epilobium easily into undisturbed areas and can <br /> hirsutum) is a perennial, semi- form monotypic stands in wetland <br /> aquatic plant also known by the areas. Seeds require a soil pH for 5.5 <br /> names "codlins and cream" and CEO <br /> or higher for germination and are <br /> r "European fireweed."The plant thought to remain viable for several �''• <br /> grows up to 6 feet tall and can years in the soil. Site monitoring <br /> reproduce via seeds or rhizomes. should be carried out for at least ten M <br /> Each mature plant can produce years after the last flowering adult -6 <br /> up to 70,000 seeds, which can be plants have been eliminated. <br /> wind-dispersed thanks to a tuft of p <br /> long white hairs on the oblong and <br /> flattened seeds. The entire plant is <br /> covered with fine soft hairs. Leaves he key to effective control of � CEO <br /> are mostly opposite, lanceolate to hairy willow-herb is to prevent <br /> o Kins k1N <br /> oblong-lanceolate in shape, with establishment through proper land <br /> sharply serrated margins. Leaves management. Maintain healthy <br /> riparian corridors, wetlands and <br /> attach directly to the stem, are often rights-of-way, and continually monitor <br /> clasping at the base, and grow from r property for new infestations. r+ <br /> 2-5 inches long and 1/2-1 inch wide.The you <br /> p p y <br /> showy pink flowers are 314 inch across Be aware that there are several native <br /> species of Epilobium in Colorado. <br /> with four notched petals, four sepals, <br /> and eight stamens. Flowers occur in Make sure to identify plants correctly <br /> racemes in the upper leaf axils and are before taking action to control them. <br /> ' present in July and August. <br /> D <br /> u airy willow-herb is a <br /> Key ID Points <br /> 1 1 designated "List A" <br /> ,.` species in the Colorado Bright1. <br /> Noxious Weed Act. It is flowers have <br /> required to be eradicated notched petals, <br /> wherever found in the 4 sepal, <br /> state.The following page <br /> provides management 2. Leaves mostly <br /> recommendations. For opposite <br /> more information please sessile on the <br /> visit: www.colorado.gov/ <br /> ag/weeds or call the State 3.Seeds <br /> Weed Coordinator at the white, silky <br /> Colorado Department of tuft in long <br /> Agriculture, at 303-869- seedpod. <br /> 9034• 4 - plant <br /> covered withsoft hairs. <br /> f pr angOptption in+ ^golf courS.4 <br /> r <br />