1. Sepals, petals, and stamens 4; flowers borne on the wood of previous years (and opening in spring).
1. Sepals, petals, and stamens 5; flowers borne apically on new shoots (and opening in summer).
All species found in Tamarix
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 21, 2021. https://michiganflora.net/genus.aspx?id=Tamarix.