Plants acaulescent, solitary or dividing into 2-3 rosettes. Leaves 12-18, 10-15 cm long, 4 cm wide at the base, ovate-lanceolate, lower surface convex, heavily white-spotted, upper surface canaliculate, dark jade green with white H-shaped spots; margins toothed; teeth about 1.5 mm long, spaced 4-5 mm apart, red, deltoid. Inflorescences to 30 cm tall, with 1-2 branches; peduncle about 6 mm in diameter at midlength, brownish green; bracts subtending the branchesto 18 mm long, scarious, 5-7-veined; branches 8-10 cm long, flowers nutant, in sub-capitate clusters at the ends of the branches; floral bracts 13-16 mm long, 4.5 mm wide, 3-veined, whitish green, remaining fleshy until post anthesis; pedicels 30-32 mm long. Flowers yellowish orange with yellow mouth, dull, covered with a waxy bloom; perianth 30-35 mm long, 11-12 mm wide across the ovary, markedly constricted above the ovary then flaring to 7 mm wide at the mouth, outer tepals free for only 5 mm, white edged with 3 red veins, tips cuspidate, inner tepals oblanceolatefree for 18 mm, mostly yellow with white mageins, 3 red veins; filaments bright lemon-yellow, the inner 3 narrower and lengthening prior to the outer; anthers exserted by 3 mm; ovary about 8 mm long, 4 mm in diameter, bright green; stigma bright yellow, exserted by 6 mm. Capsule about 2 cm long, 9 mm in diameter.
Aloe rubrodonta grows on stepped limetone rocks in an area of western Somaliland where granitoids dominate.