Cardoso, P.H., Menini Neto, L., Somavilla, N.S. and Trovó, M. 2022. A morphometric approach and recircumscription of the Stachytarpheta longispicata complex (Verbenaceae). European Journal of Taxonomy. 833, 1 (Jul. 2022), 12-45. DOI:https://doi.org/10.5852/ejt.2022.833.1881.