Chlorophytum comosum grows to about 60 cm (24 in) tall, although as a hanging plant it can descend many feet. It has fleshy, tuberous roots, each about 5–10 cm (2–4 in) long. The long narrow leaves reach a length of 20–45 cm (8–18 in) and are around 6–25 millimetres (0.2–1.0 in) wide.
Flowers are produced in a long, branched inflorescence, which can reach a length of up to 75 cm (30 in) and eventually bends downward to meet the earth. Flowers initially occur in clusters of 1–6 at intervals along the stem (scape) of the inflorescence. Each cluster is at the base of a bract, which ranges from 2–8 cm (0.8–3.1 in) in length, becoming smaller toward the end of the inflorescence. Most of the flowers that are produced initially die off, so that relatively, the inflorescences are sparsely flowered.
Individual flowers are greenish-white, borne on stalks (pedicels) some 4–8 mm (0.2–0.3 in) long. Each flower has six triply veined tepals that are 6–9 mm (0.2–0.4 in) long and slightly hooded or boat-shaped at their tips. The stamens consist of a pollen-producing anther about 3.5 mm (0.1 in) long with a filament of similar length or slightly longer. The central style is 3–8 mm (0.1–0.3 in) long. Seeds are produced in a capsule, 3–8 mm (0.1–0.3 in) long, on stalks (pedicels) that lengthen to up to 12 mm (0.5 in).
The inflorescences carry not only flowers but also vegetative plantlets at the tips of their branches, which eventually droop and touch the soil, developing adventitious roots. The stems (scapes) of the inflorescence are called “stolons” in some sources, but this term is more correctly used for stems that do not bear flowers and have roots at the nodes.