Helianthus grosseserratus

The plant may reach 3–7 feet (91–366 cm) in height with instances to 12 and is found along streams, damp prairies and roadsides in the eastern and central parts of Canada and the United States, primarily in the northern Great Plains and Great Lakes Region, with additional populations as far as Maine, Georgia, and Texas.[3][4] It prefers full sun and moist, fertile loamy soil with high organic content.The leaves have large teeth along the edges (hence the name, sawtooth) to occasionally nearly entire and the tips are pointed.[6] Various insects, birds and mammals (including cattle) feed on either the plant or its seeds.[5][7] Native Americans used to treat burns with a poultice made from the flowers.
Conservation statusLeast ConcernIUCN 3.1Scientific classificationPlantaeTracheophytesAngiospermsEudicotsAsteridsAsteralesAsteraceaeHelianthusBinomial nameM.MartensSynonymssunflowerGreat PlainsGreat Lakes RegionGeorgialanceolateacheneJerusalem artichokeUnited States Department of AgricultureThe Plant ListWorld Flora OnlineGermplasm Resources Information NetworkAgricultural Research ServiceMissouri Botanical GardenHarvard University HerbariaWikidataWikispeciesiNaturalistNatureServeOpen Tree of LifePlant ListTropicos