Breitwieser, I.; Ford, K.A. 2023: Four new species of Craspedia (Compositae/Asteraceae, Gnaphalieae) from the South Island of New Zealand, all characterised by dark red-purple anthers. New Zealand Journal of Botany 61(2-3): 131–157. (Published online: 2022 https://doi.org/10.1080/0028825X.2022.2095919)