Holmgren's milk vetch is so finely adapted to its arid northern Mojave Desert environment that it's often the only plant found alive atop special soils strewn with small stones and gravel deposits.

With its oversized seeds and small leaves, Peirson's milk vetch is well adapted for survival in the harsh conditions of blowing sand dunes. Large seeds ensure that germinated seedlings have enough ...

KKL-JNF and volunteers in the Jerusalem Mountains are restoring the habitat of the rare Tomares nesimachus butterfly.

Someone drove a vehicle into Death Valley National Park's Eureka Dunes and damaged numerous rare and threatened plant species ...