It has 3–12 cm (1.2–4.7 in) long leaves that are shortened and rounded with a wavy blade and narrow tip.

Its seeds are 1 millimetre (0 in) with large wings, and the plant flowers between February and September.

[1][3] Nemesia floribunda is typically found in subtropical environments, specifically nearby dunes with lupin and elder shrubs.

[4][2] It prefers consistent moisture in the soil while not being overburdened by waterlogging, and is somewhat drought resistant.

However, there is at least one wild, confirmed sighting of the plant in the United Kingdom just outside of the Royal Botanic Garden Edinburgh.