Black Hills Spruce
Picea glauca var. densata
is thin and flaky, usually ash-gray in color.
Evergreen, 1/3 to 3/4 inches long, with 4-sided needles that are bright to bluish green.
Male cones can be either erect or hanging and produce pollen that is wind-borne. The female cone is narrow, oblong, and about 1 to 2 inches (2.54 to 5 cm) long. The cones of Black Hills spruce are shorter and heavier than those of white spruce.
Black Hills spruce is a variety of white spruce that is native to a geographically isolated area in and around the Black Hills of South Dakota.
Northern State University – Black Hills Spruce