helenium autumnale

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Related to helenium autumnale: Symphyotrichum laeve
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Yellow daisy-like flowers with globular middle, angled stems. Sometimes called “Swamp Sunflower” because it likes to grow near water in sand. Tea made from flowers used for intestinal worms. Contains a strong anti-cancer lactone recognized by National Cancer Institute. Ok for humans, but too strong (poisonous) for animals, worms and insects. Keep away from grazing animals.
References in periodicals archive ?
acutus), Sagittaria latifolia, and Helenium autumnale.
The floodplain wetland communities retained all of the elements present in the early-middle Holocene, but the dominance of Glyceria striata and the shade-tolerant Urtica dioica and Pilea pumila apparently suddenly switched to Scirpus validus/acutus, along with Polygonum lapathifolium, Leersia oryzoides, Polygonum punctatum, Sagittaria latifolia, Cornus spp., and Helenium autumnale [ILLUSTRATION FOR FIGURES 8 AND 12 OMITTED].
D Or, for sizzle in sunlight, mix hot colors such as orange Helenium autumnale with golden yarrow.