For Sida
Bayer & Kubitzki. 2003. 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.
Fryxell, P.A. 1985. Sidus sidarum V. The North and Central American species of Sida. Sida 11: 62-91.
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.
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.
Siedo, S.J. 1999. A taxonomic treatment of Sida sect. Ellipticifoliae (Malvaceae). Lundellia 2: 100-127.
Siedo, S.J. 2001. A new species of Sida sect. Ellipticifoliae (Malvaceae). Lundellia 4(1): 69-75.
Siedo, S.J. 2014. Sida littoralis, a new name for a species of Sida sect. Ellipticifoliae (Malvaceae) endemic to Florida. Phytoneuron 2014-75: 1-5.
Verdcourt, B. 2004. The variation of Sida rhombifolia L. (Malvaceae) in East Africa. Kew Bull. 59: 233-239.
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