The particular species of chilli pepper, Capsicum frutescens, is at times categorized under the species Capsicum annuum. The pepper cultivars of Capsicum frutescens can both be annual or perennial (short-lived) plants. The plant’s flowers are white and have a greenish white or greenish yellow corolla. The plant’s berries are very small (10–20 millimetres (0.39–0.79 inch) long and 3–7 millimetres (0.12–0.28 in) in diameter) and acrid, their shape is ellipsoid-conical to lanceolate. The fruit (the peppers) usually develop from a pale yellow to a bright red when ripe. Varieties can come in other colours as well.