The U.S. Fish and Wildlife Service has declared the bracted twistflower, native to the Edwards Plateau, a threatened species, a month after putting another Texas plant on the endangered list.
Protections Sought for Rare Mojave Desert Wildflower Threatened by Urban Sprawl, Energy Development - Center for Biological Diversity
Rare San Antonio-area wildflower could be deemed 'threatened' under Endangered Species Act
Meet a Texas Plant Hunter Who's Combing Forests and Fields to Save Rare Flowers – Texas Monthly
A rare Texas wildflower gets protection under the Endangered Species Act
Wildflowers and Other Herbaceous Plants of Utah Rangelands by Utah State University Extension - Issuu
Texas Bluebonnets - Texas Pride
Plants - Point Reyes National Seashore (U.S. National Park Service)
Rare Plants - Joshua Tree National Park (U.S. National Park Service)
Bracted Twistflower Listed as Threatened Under Endangered Species Act
Conservationists lobby feds to protect endangered desert wildflower
Texas poppy-mallow: Federal & State Listed Plants of Texas
Bee-friendly urban wildflower meadows prove a hit with German city dwellers, Conservation
How a rare plant species could hinder a proposed lithium mine - Roll Call