A detailed account is given of plant microfossils recovered from shales and siltstones that represent three of the four Triassic formations developed in the vicinity of Poatina, north‐central Tasmania. The microfloral assemblages comprise 44 species of spores and pollen grains, of which nine species are described as new. The diagnosis ofLundbladisporaBalme is emended. Comparison with existing records of Australian and overseas Triassic microfloras indicates that at least the greater part of the Triassic is represented in the Poatina sequence, which has itself been regarded as the most complete development of the System in Tasmania. This work serves to emphasize the unique and potential value of palynology in the resolution of difficulties of correlation within the Tasmanian Triassic.