Kennedia microphylla is a prostrate, mat-forming creeper that typically grows to wide and wide. The leaves are trifoliate, long with stipules long at the base, the leaflets flat. The flowers are uniformly red and borne on hairy pedicels about long. The five sepals are hairy and long. The standardpetal is long, the wings long and the keel long. Flowering occurs from August to December and the fruit is a hairy, flattened pod long.