The branched panicle of Aloe comptonii may be 80 cm tall and bear up to eight branches or racemes. Thin, whitish sterile bracts are seen on the peduncles below some of the racemes. The densely flowered racemes, rounded to conical in shape, become up to 15 cm long. Individual flower stalks or pedicels become up to 3,5 cm long, the lowest ones the longest. Small, white bracts below each pedicel are dry and membranous in texture.
The perianths (individual flowers) are dull pink to scarlet, cylindrical to triangular in cross-section, slightly curved and bulging at the base. They become slightly wider towards the tip, the mouth usually opening widely, by which time the perianth is pendulous. There isn’t much of exserted anthers to be seen in the photo (Van Wyk and Smith, 2003; Reynolds, 1974; iNaturalist).