An absolutely classic plant in rocky mountains and foothills. Each cluster of leaves (which could be a few inches or over a foot wide) produces several bare stalks (usually less than 9 inches long), which then splits into several short stems, each of which has a rounded ball of small flowers at the tip. These flower clusters are a vibrant yellow or electric lime color, taking on burnished orange tones with age. Leaves vary in shape and color, but are usually clustered below the flowerstalk, and often a wooly grey-green on the underside and darker green on top. This plant particularly seems to prefer areas around dry slopes and rocky outcroppings, often wedging itself into cracks in rock formations. This plant can be split into dozens of different varieties and subspecies, each with significant differences. I was unfortunately unable to name the varieties specifically found in Boulder.