The dense rosette of Aloe comosa consists of many erect or spreading leaves, sometimes slightly recurved near their tips. The lance-shaped to sword-shaped leaf is flat on top to slightly channelled, convex below and faintly longitudinally lined on both surfaces. Leaf surfaces are smooth, greyish to blue-green, in parts with added hues of pink and brown.
Only the margins are toothed, not the blades. The small, brown-red, triangular teeth are up to 2 mm long and spaced, sometimes uneven in size and spacing. The leaves become up to 70 cm long and 12 cm wide near the base.
In picture the sturdy, blue-grey peduncle shows few, well-spaced, sterile bracts, thin and dry. The papery bract is triangular, its broad base attached to the stem, its attenuating tip long, thread-like and curling (Reynolds, 1974; Van Wyk and Smith, 2003; Jeppe, 1969; iNaturalist).