References
For Sida
Bayer, C., and K. Kubitzki. 2003. Malvaceae. Pp. 225-311. In Kubitzki, K., and C. Bayer, eds. 2003. The families and genera of vascular plants. V. Flowering plants – Dicotyledons – Malvales, Capparales, and non-betalain Caryophyllales. Springer, Berlin. 418 pp. Google Scholar
Fryxell, P.A. 1985. Sidus sidarum V. The North and Central American species of Sida. Sida 11: 62-91. Google Scholar
Fryxell, P.A., and S.R. Hill. 2015m. Sida. In Flora of North America Editorial Committee. 2015. Flora of North America north of Mexico. Volume 6, Magnoliophyta: Cucurbitaceae to Droseraceae. Oxford Univ. Press, New York, NY. 468 pp. Google Scholar
Fuertes Aguilar, J., P.A. Fryxell, and R.K. Jansen. 2003. Phylogenetic relationships and classification of the Sida generic alliance (Malvaceae) based on nrDNA ITS evidence. Syst. Bot. 28: 352-364. Google Scholar
Siedo, S.J. 1999. A taxonomic treatment of Sida sect. Ellipticifoliae (Malvaceae). Lundellia 2: 100-127. Google Scholar
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