Clara E. Trueblood Trueblood, C. E., Ranney, T. G., Lynch, N. P., Neal, J. C., & Olsen, R. T. (2010). Evaluating fertility of triploid clones of Hypericum androsaemum L. for use as non-invasive landscape plants. HortScience, 45(7), 1026–1028. https://doi.org/10.21273/HORTSCI.45.7.1026