Plants treellike. Stems to 2 m tall, erect, naked below, simple or with several branches forming from the base. Leaves 30-36 cm long 3-7 cm wide, lanceolate-attenuate, green, young leaves with a few, scattered, whitish spots on the upper surfaces, moste densely spotted on lower surfaces; margins narrowly whitish cartilaginous, with forward-pointing, triangular teeth; teeth about 1 mm long, 5-9 mm apart. Inflorescences to 70 cm long, erect, with 7-18 horizontally spreading branches in the upper part; peduncles with ovate, scarious bracts up to 6 mm long subtending the branches; branches 4-12 cm long, racemose, the flowers well-spaced; bracts subtending the pedicles to 5 mm long, 2 mm wide, lanceolate, scarious, with a darker median line; pedicels about 7 mm long in flower, to 17 mm long in fruit. Flowers 25-27 mm long, 7-8 mm wide across the ovary; perianth pale yellow with greenish tips, cylindrical-trigonous, base rounded, narrowing slightly distally, outer segments fee for about 9 mm, inner segments whitish with a dark median line; anthers exserted for about 2 mm. Capsules about 15 mm long. 9 mm in diameter, ovoid; seeds about 4.5 mm long, 2.5 mm wide, black with pale buff wings.
Aloe miskatana grows on open, limestone slopes at 1000 - 1620 m. It is known only from region N3 of the Flora of Somalia. It is similar to Aloe medishiana and A. gracicaulis vut has larger flowers (25-27 mm versus up to 19 mm), inflorescences, bracts, and pedicels.