Oligoneuron riddellii (Riddell's Goldenrod) grows in high quality mesic to moist tallgrass prairies. In remnenat wet areas it is found with Calamagrostis canadensis, Chelone glabra, and Scirpus atrovirens. Panicum virgatum, Liatris spicata, and Sporobolus heterolepis are associated with Ridell's Goldenrod in dry prairies. This species hybridizes with O. rigidum and O. album with remarkable ease.
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