For Hymenopappus
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C.
Strother, J.L. 2006eee. Hymenopappus. In Flora of North America Editorial Committee. 2006c. Flora of North America north of Mexico. Volume 21, Magnoliophyta: Asteridae, part 6: Asteraceae, part 3. Oxford Univ. Press, New York, NY. 616 pp.
Turner, B. L. 1956. A cytotaxonomic study of the genus Hymenopappus (Compositae). Rhodora 58: 163–186, 208–242, 259–269, 295–308.
Turner, B.L. 2015. Hymenopappus carrii (Asteraceae: Helenieae), a new species from the gulf coastal prairie of south-central Texas. Phytologia 97: 132-134.
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