Palms in this group have solitary trunks. Crownshafts are not present in the genus; the leaves are pinnate, to 2–5 m long. The term "windowpane" palm comes from the leaflets on younger plants that are only partially divided from each other, where there appear to be 'windows' in the leaves between the leaflets. Older specimens do not display the windowpanes as the leaflets completely divide from each other.
They are somewhat cold hardy, down to about -3 °C, making them a good look-alike for the coconut in cooler climates.[citation needed]
^Shapcott, A., Rakotoarinivo, M., Smith, R. J., Lysakova, G., Fay, M. F., & Dransfield, J. (2007). Can we bring Madagascar's critically endangered palms back from the brink? Genetics, ecology and conservation of the critically endangered palm Beccariophoenix madagascariensis. Botanical Journal of the Linnean Society 154 (4): 589-608 full textArchived 2016-03-03 at the Wayback Machine.
