Plants with stems that lie along the ground before becoming vertical, often developing offshoots from the lower portion and having about 16 leaves at the top. Leaves 50-70 cm long and 9-11 cm wide, spreading to recurved and deeply furrowed above, olive-green in color and with brown-tipped teeth 1-2 mm long 5-14 mm long. Inflorescences about 130 long, with both primary and secondary branches, the racemes about 15 cm long with scarlet flowers on pedicels 5-6 mm long subtended by bracts 2-4 mm long and about 2 mm wide. Flowers about 23 mm long and 7 mm wide across the ovary, the outer tepals being free for about 10mm. The anthers exceed the perianth by about 3 mm and the stigma by 5 mm.
Aloe microdonta grows in south-central and southern Somalia (regions C2 and S1-S3 in the Flora of Somalia) and was not known from elsewhere when the account in the Flora was prepared.