This species can become a small tree, branching abundantly up to 3–5m high. It is summer-deciduous. It flowers abundantly from September to March, and fruits in spring.
The leaves are:
The flowers are:
The flowers have:
The fruits are divided into 30–40 indehiscent mericarps, which are elongate, and flattened, with 2 apical horns.
The seeds are kidney-shaped and blackish in colour.
A team consisting of Javier Fuertes Aguilar and Alejandro Fernández de Castro of the Real Jardín Botánico de Madrid, and Juan Carlos Moreno of the Universidad Autónoma of Madrid, has carried out studies of pollination and seed production in several populations.
The studies conclusively showed that numerous visits by insects, and self-fertilisation had little or no effect, and seed production is due principally to bird pollination.
4 species of birds are known to visit the flowers of Navaea phonicea on a regular basis. They are: