Bipolaris spicifera belongs to the dematiaceous Bipolaris species of fungi. It is usually found in soil and plants such as grasses. This fast growing kind of fungi has a soft texture and gray-brown color. As for the colony, the color changes into dark olive to black on the surface; on the other side, the color is dark brown to black.

Certain Bipolaris species are pathogenic, and Bipolaris spicifera is one of them. This allergenic fungi is most recognized as the cause of phaeohyphomycosis, a group of fungi-caused infections that result in pigmented hyphae and yeast-like cells in tissue. Bipolaris spicifera is usually blamed for sinusitis, endarteritis,endocarditis, fungemia, keratitis, peritonitis, as well as cutaneous and pulmonary infections in healthy, immunosuppressed or immunocompetent individuals. Inhalation of this fungi can result in the growth of masses in the sinuses. The polyps that develop due to the growth have to be removed by surgery.