Southward, R. C./Fountain, D. W./Gao, R./McGill, C. R./Outred, H. A. 2002. Biology, structure, and germination characteristics of seeds of puriri Vitex lucens (Verbenaceae), New Zealand Journal of Botany, 40:3, 427-435, DOI: 10.1080/0028825X.2002.9512804
Online details: https://www.tandfonline.com/doi/pdf/10.1080/0028825X.2002.9512804