U.S. aims to protect rare wildflower from planned lithium mine
The agency last week proposed designating critical habitat for Tiehm’s buckwheat on a high-desert ridge near the California line halfway between Reno and Las Vegas.
It’s the only place in the world that the delicate, 6-inch-tall wildflower with yellow blooms is known to exist.
It’s also the site where Ioneer USA Corp. plans to build a big lithium mine.
Ioneer said that the proposed designation was anticipated and that it “has no material impacts on our planned mining activities.”
The Australian company notes that mining activity is allowed in areas designated as critical habitat if approved by the U.S. Fish and Wildlife Service and the Bureau of Land Management.
In its formal notice of the proposed habitat designation, the Fish and Wildlife Service said Wednesday that “this unit is essential to the conservation and recovery of Tiehm’s buckwheat because it supports all of the habitat that is occupied by Tiehm’s buckwheat across the species’ range.”
Conservationists who sued to protect the plant praised the move.
“This proposed critical habitat rule sends a clear message: Protecting the native range of Tiehm’s buckwheat is the only way to prevent its extinction,” said Naomi Fraga, the conservation director of the California Botanic Garden, who joined the Center for Biological Diversity’s 2019 petition to list the plant as endangered.
Unless the Fish and Wildlife Service reverses course out of new information, the plant will be declared endangered in September based on a court order and the agency’s final-listing rule in October 2021, which concluded that it may already be on the brink of extinction.
That listing triggers certain regulatory obligations, such as consulting with the service before any development or other activity that could harm the plant. But the designation identifies specific habitat that “may require special management and protection” — in this case, “to address mineral development, road development and [off-highway vehicle] activity, livestock grazing, non-native invasive plants species and herb-ivory,” the agency said.
The plant grows on about 10 acres of land — an area about the size of 130 football fields — at Rhyolite Ridge in the Silver Peak range west of Tonopah, 200 miles southeast of Reno. Fewer than 30,000 are believed to exist.
The 910 acres proposed for habitat designation would provide about a 1,650-foot buffer around the plants to ensure access for bees and other pollinators. Conservationists have argued for a buffer three times larger. Ioneer has suggested that less than one-tenth as much would be sufficient.
The company maintains that its project will come with a conservation strategy, which includes transplanting some flowers and growing new ones with seeds it has gathered as part of a propagation experiment in greenhouses at the University of Nevada, Reno.
But conservationists say the proposed designation reaffirms their contention that that won’t work, or at least pass legal muster.
“Ioneer’s plans to destroy much of the plant’s habitat and establish it somewhere else are highly unlikely to comport with a critical habitat designation, since the rule recognizes that these areas are essential for the species,” said Patrick Donnelly, the Center for Biological Diversity’s Nevada director.
The Fish and Wildlife Service said Ioneer intends to avoid and fence off a portion of the land, “remove and salvage all remaining plants ... and translocate them to another location.”
But the service said studies and results of greenhouse propagation experiments show there’s a “unique envelope of soil conditions in which Tiehm’s buckwheat thrives that is different from adjacent unoccupied soils.”
“The areas outside the occupied area do not support these physical and biological features and we are not confident that they would support populations of Tiehm’s buckwheat,” it said.
