Commemorating King Juba of Numidia, N Africa.

Single-species genus. For description see species see j. chilensis.

Seeds take 6-15 months to germinate but the success rate is extremely low.

1 species from coastal Chile.

Source: Jones, D; Spencer, R. (2005). Arecaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.