Helenium arizonicum is a tall herbaceous annual commonly called Arizona Sneezeweed. This species is endemic to northern Arizona, and is only found in places that have ephemeral or perennial water. It's often found growing directly out of the water in puddles or small ponds. With the lingering drought in the Southwest, the species may be in decline. However, recent rain in 2022 produced a moderate population size for us to collect seeds for long-term storage.
In 2018 two seed collections from the Coconino National Forest were made by the Arboretum at Flagstaff for the USFS Rare Plant Seed Banking Agreement.
In accordance with the CPC and USFS Rare Plant Seed Banking Agreement, in 2018 14 maternal lines from one population and 50 maternal lines from a second population were collected at Coconino National Forest. Seeds were divided for storage between The Arboretum at Flagstaff and the National Laboratory for Genetic Resources Preservation in Fort Collins, CO.
In accordance with the CPC and USFS Rare Plant Seed Banking Agreement, in 2017 50 maternal lines per population were collected from 3 separate populations at Coconino National Forest. Seed quantity varied from ~2000-6000 seeds. Seeds were divided and duplicated between The Arboretum at Flagstaff and the National Laboratory for Genetic Resources Preservation in Fort Collins, CO.
In a five-year collaboration between US Forest Service (USFS) and Center for Plant Conservation (CPC), rare plant populations located on Region 3 USFS land were identified, seed collected, and banked through CPC’s network of botanical gardens. In 2017, Sheila Murray, with assistance from volunteers and Dr. Kris Haskins, made three seed collections of Helenium arizonicum.
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