First Poppies at the Iron Gate Narrows, Klamath River, California, May 21, 2024.

California poppies (Eschscholzia californica), common fiddleneck (Amsinckia menziesii), and chick lupine (Lupinus microcarpus var densiflorus) are in their first bloom at the former Iron Gate and Copco Reservoirs.
These hardy species are native to California and thrive in disturbed soils. Their special powers have been recruited to help prevent not just soil erosion but to reduce the advance of undesirable plant species such as sheet grass and star thistle.
First spread by hand, successive generations will make their way to the river's edge helping secure soil while making way for shrubs and trees.
A fun fact here is these poppies are only in the seed mix dispersed by hand along the reservoir's former shoreline. Helicopter reseeding of the lower reaches didn't include the poppies.
Ongoing reseeding efforts are part of the Klamath River Renewal Project also known as the Lower Klamath Project (FERC No. 14083) being managed by the Klamath River Renewal Corporation. In addition to the removal of four hydroelectric dams the project involves massive restoration of the former reservoirs.
Restoration is managed by RES (Resource Environmental Solutions), headquartered out of Houston Texas and self-described as "the nation's largest ecological restoration company focused on restoring a resilient earth for a modern world."