The Alakai Swamp Pritchardia grows up to 12 metres (39 ft) high, and forms a trunk with a diameter of approximately 100 millimetres (3.9 in). The leaves are yellowish when they emerge, and this color is sometimes maintained on the undersides of mature leaves. The leaves are leathery and smooth above, but the undersides are waxy and have a covering of greyish to yellowish tomentum (felt) beneath. The shiny black fruits of this palm are ovoid, about 2 cm by 13 mm, and contain a seed up to 15 mm in diameter. It is not endangered.