L.M.Perry 1933 - Perry LM (1933) A Revision of the North American Species of Verbena. Annals of the Missouri Botanical Garden 20(2): 239. doi: 10.2307/2394217.
Specifications
Images
Synonyms
Verbena hirtella (L.M.Perry) G.L.Nesom
Verbena lasiostachys var. abramsii (Moldenke) Jeps.