Thompson, J., 1984. American Arctic Lichens: The Macrolichens.
Primary thallus not known. Podetia in tufts or mats, 30-60 mm tall, 1-4 mm diameter, cupless; sympodially branched with the upper branches whorled, the branchlets short, dichotomous or in whorls, spinescent, the axils usually perforate; surface smooth, straw-colored to yellowish, inner cartilaginous layer continuous, 40-50 μ thick, the outer cortex 30-60 μ thick. Apothecia not known.
Reactions: K— , C— , KC+ yellowish, P-.
Contents: usnic and hypothamnolic acids.
This species grows on soils rich in humus. It appears to prefer open stands of spruce. It is an amphi-Beringian species known from Japan and Alaska.