Dracaena konaensis occurs as a tree, typically reaching heights of 5–6 meters. It features stems ranging from unbranched to many-branched, with younger stems displaying conspicuous leaf scars. A fibrous root system supports the plant. The leaves are simple, alternate, and arranged in a spiral pattern. The blades are linear, gradually tapering in the upper third, and measure 23–38 cm in length and 1.4–2.7 cm in width. These subcoriaceous blades have entire margins and parallel veins and are sessile with no stipules. The flowers of this plant are borne in compact, slightly glaucous panicles measuring 19–28 cm in length. The lower lateral branches of these panicles are 3–10 cm long, with peduncles that are 6–13 cm long and abruptly recurved. The flowers are bisexual (perfect) with 5–12 mm pedicels. The perianth is pale yellow, 33–43 mm long, with a 24–34 mm long tube and a constricted basal part around 4–6 mm long. The lobes are slightly spreading, measuring 11–14 mm in length. It has six stamens with anthers approximately 4–4.5 mm long and a superior ovary that is 3-celled with one ovule per cell. The style is filiform, and the stigma is capitate or slightly lobed. The plant’s fruit are red berries, roughly 10–13 mm long, and the seeds are typically one, occasionally two, measuring 3–3.5 mm long. It is rare, predominantly found in dry forests and occasionally in mesic forests at 300-860 meters.