Alsophila rosenstockii, synonym Cyathea ascendens, is a species of tree fern native to northeastern New Guinea, where it grows in rain forest at an altitude of . The erect trunk is slim and  tall.
Alsophila rosenstockii, also known as Cyathea ascendens, is a species of tree fern native to northeastern New Guinea, where it grows in rainforests at an altitude of . The erect trunk is slim and tall.