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Little is known about how Sclerocactus species spread their seed. This is a question we would like to answer because Sclerocactus glaucus has been recommended for delisting from the Endangered Species

In 2008, Denver Botanic Gardens initiated demographic monitoring of Sclerocactus glaucus , a small ball cactus found only in western Colorado. The cactus had been listed as threated on the Endangered

On April 10, the U.S. Fish and Wildlife Service (Service) announced a proposed rule to remove Sclerocactus glaucus , a small barrel cactus found in the Colorado and Gunnison River Basins in Western

Conservation of rare species involves knowing where they are found and how many individuals are in a population. If a species can only survive in certain habitats, then any changes to that habitat can

Spring is the season where I switch from working in the office on a quest to discover patterns in our data that predict the behavior of rare plant populations to venturing out to the field to view

It is on the brisk days of winter such as these that I long for the summer days I used to spend out in the field collecting data on Colorado rare plants. In my opinion, very few things beat the thrill

On the western slope of Colorado you will find populations of a rare ball cactus with lilac flowers that bloom a few days a year when the sun is shining and pollinators are flying. Each Colorado

Sneaky Spines and Careful Measurements Sweeping western slope views, slightly menacing rain clouds and beautiful, tough plants surrounded us. I listened for my field partner to shout out cactus

Many of the beautiful places where we study plants and mushrooms are dormant and snow-covered this time of year, but the Research & Conservation department is still humming with activity! In the

Pollinators provide critical ecosystem services. Pollinator research is important to better understand the relationships between pollinators and plants and to improve conservation and management of

What threatens Sclerocactus glaucus ? Installation and maintenance of huge pipelines that move oil and gas from the well pads miles and miles to the collection facilities; roads; browsing and