Colonies on agarized media are arachnoid to cottony, white, up to 2 cm or more thick.
Sporangiophores 60-100 microns high, 5-7 (9) microns at the base, 1.5-2 microns thick at the top, awl-shaped, hyaline, unbranched, smooth-walled. Multispore sporangia are usually spherical, 16–20 microns in diameter, white, disintegrating. The collar is small. Sporangiols are single-spore, formed in old cultures, flattened, 12-22 microns long and 7-11 microns wide. Sporangiospores (5) 7-9 (10) microns in diameter, elliptical, hyaline, smooth-walled; sporangiol spores occupy the entire sporangiol.
Heterotallic appearance. Zygospores are spherical or almost spherical, 42–80 × 40–70 μm, hyaline, smooth, with a three-layer wall. The copulating spurs ( suspensors ) are unequal, the largest of them is spherical, on average 40-43 microns in diameter.