Penstemon digitalis the plant's cultivars is named Husker Red because of its red foliage that has white or bluish-pink flowers. The Perennial Plant Association chose the Husker Red cultivar of "Penstemon digitalis" as the 1996 Perennial Plant of the Year. The author of the book "Perennial All-Stars" described Husker Red as "a stunning flowering perennial" and that "you can easily see why the Perennial Plant Association chose this perennial above all others". Husker Red was named after the Nebraska Cornhuskers. The other cultivar, Mystica, is green at first and then later changes to red in the fall. There is a hybrid of
Chemical plant workers typically include engineers, plant operators, and maintenance technicians. Other personnel at the site could include chemists, management/administration and office workers. Types of engineers involved in operations or maintenance may include chemical process engineers, mechanical engineers for maintaining mechanical equipment, and electrical/computer engineers for electrical or computer equipment. Large quantities of fluid feedstock or product may enter or leave a plant by pipeline, railroad tank car, or tanker truck. For example, petroleum commonly comes to a refinery by pipeline. Pipelines can also carry petrochemical feedstock from a refinery to a nearby petrochemical plant. Natural gas is a product which comes