In the fall and into the winter of 2020 the rock slide and cleanup of loose rock above the American River Bike trail was removed and dumped in Mississippi Bar along the "Vast Space" near the massive dredged rock tailing piles in that area..What seems to have happened is Tree Tobacco was moved as well from the Bluffs along the American River Bike trail and is now growing here...
https://www.inaturalist.org/observations/13273816
growing in Bluff's debris dump site in Mississippi Bar.
https://calscape.org/Amsinckia-tessellata-(Fiddleneck)?srchcr=sc5ef6dce4938b2