Baloskion tetraphyllum is an evergreen perennial that resembles bamboo, reaching heights of up to 2 meters. Its stems are rigid and smooth, showcasing a vibrant green color accented by brown bracts. The upper section of the plant features dense clusters of slender, leaf-like modified stems, which are capped with loose, upright spikes bearing small, grass-like flowers in a reddish-brown hue.

Baloskion consists of rhizomatous perennial plants characterized by their tufted, rush-like structure and delicate, feathery leaves. They produce subtle flowers arranged in brown spikelets, which can cluster to form substantial panicles. Notably, male and female flowers occur on different plants.

Baloskion tetraphyllum

Baloskion tetraphyllum 'Cornish Gold' is a tufted, evergreen perennial that spreads via rhizomes. Its slender stems display a combination of light green and golden-yellow bands. In summer, this male variety produces brown spikelets as its flowers.