The California Fish and Game Commission decided to list a small shrub with white flowers called the Shasta snow wreath as threatened under the state Endangered Species Act on Wednesday.
The Shasta snow wreath has been found in just 26 locations around the lake.
It鈥檚 thought to have evolved as long as 34 to 56 million years ago, and grew across the Pacific Northwest. But the plant has since retreated to small, isolated pockets around the lake.
The rare plant wasn鈥檛 discovered by scientists until 1992. It looks similar to other common shrubs in the area, and the U.S. Forest Service says the flowers 鈥� a common way to identify a plant 鈥� last for a very short period. The snow wreath is also often found growing among poison oak, which may help explain why the plant has managed to hide in plain sight for so long.
During the Trump administration, there was a push to raise the height of the Shasta Dam. Trump signed an executive order in early 2020 to direct the development of expanding water supplies in California. That includes the Central Valley Project, in which Shasta Lake is one of the most northern reservoirs.
Isabel Baer with the California Department of Fish and Wildlife said if the dam were raised, it would directly impact at least half of the known Shasta snow wreath populations.
鈥淭here has been a lot of environmental study done on that area,鈥� Baer said. 鈥淎nd those did include impacts to species in the area. So we did take that into account, into our status review. And I think that鈥檚 part of why our recommendation was that it was threatened.鈥�
The dam raising proposal has stalled for now, but any future efforts could see pushback involving this now-protected plant species.
鈥淚 don鈥檛 know that the listing of Shasta snow wreath in itself would be sufficient to say this project can no longer happen,鈥� said Baer. 鈥淭here is a way to obtain permission to take that species and mitigate for those impacts.鈥�
But listing the plant under the California Endangered Species Act may not do enough to help prevent a project happening on federal land.
鈥淭he federal [ESA] would address federal projects on federal lands like Shasta Dam,鈥� said Len Lindstrand, a Botanist who鈥檚 done extensive research into the Shasta snow wreath. 鈥淏ut the state one doesn鈥檛.鈥�
The snow wreath is also under consideration to be listed under the federal Endangered Species Act, but that process has been much slower. The proposal received a from the U.S. Fish and Wildlife Service in March of 2021 which approved a 12-month review of the plant, however that review hasn鈥檛 been completed after almost two years.
Lendstrand said one of the concerns with state and federal protections for a plant means there鈥檚 more bureaucracy that鈥檚 required even for conservation purposes if they resulted in accidental snow wreath mortality 鈥� for example removing invasive blackberry which currently grows around the snow wreath and eventually kills it.
鈥淏ut there鈥檚 no way, especially if this thing got listed federally, that anyone鈥檚 gonna get in here and do anything to help it,鈥� Lindstrand said. 鈥淏ecause you鈥檙e gonna have to take some. When it鈥檚 all intertwined with Blackberry you鈥檙e gonna have a little impact on some.鈥�
Lindstrand said the state listing does elevate the plant to a greater level of attention, but the protections alone doesn鈥檛 mean the snow wreath has a chance at recovering.
