Castilleja sulphurea (Sulphur Paintbrush)

Order Lamiales, Family Orobanchaceae, Genus Castelleja

This plant lives in damp meadows, sometimes in great profusion. As with all Paintbrushes, the outer parts are bracts and sepals; the actual flower parts are found within. Castilleja septentrionalis is a synonym, with complications. Wikipedia and Southwest Colorado Wildflowers have more information.