For Chamaesaracha
Averett, J.E. 2010. The status of Chamaesaracha coniodes and C. coronopus (Solanaceae). Phytoneuron 2010-57: 1-5. Google Scholar
Averett, J.E. 2023a. Chamaesaracha. In Flora of North America Editorial Committee. 2023c. Flora of North America north of Mexico. Volume 14, Magnoliophyta: Gentianaceae to Hydroleaceae. Oxford Univ. Press, New York, NY. 505 pp. Google Scholar
Turner, B.L. 2015. Hymenopappus carrii (Asteraceae: Helenieae), a new species from the gulf coastal prairie of south-central Texas. Phytologia 97: 132-134. Google Scholar