Barbara Pickersgill (nata anno 1940) est botanistaAnglica. Alumna est universitatum Radingensis, ubi botanicae horticulturali studuit, et Indianensis ubi propter dissertationem de taxinomia Capsici chinensis titulum doctoris philosophiae nacta est. Ibi discipula erat Caroli Heiser. Postea usque in 2005 apud almam matrem Radingensem docuit. De originibus et genetica plantarum domesticatarum operam dat, praesertim harum generum: Capsicum, Vicia, Psophocarpus, Lens, Cicer, Arachis, Ananas, Gossypium, Ipomoea, Zea, Phaseolus, Chenopodium, Musa.
1971 : "Relationships Between Weedy and Cultivated Forms in Some Species of Chili Peppers (Genus capsicum)" in Evolution vol. 25 (1971) pp. 683-691 JSTOR
2011 (cum Gregory J. Anderson) : "Travels with Charley—sunflowers and beyond: an appreciation of the life and work of Charles B. Heiser, Jr. (1920-2010)" in Economic Botany vol. 64 (2010) pp. 281-286 JSTOR
2016 : "Chile Peppers" in Rafael Lira, Alejandro Casas, José Blancas, edd., Ethnobotany of Mexico: Interactions of People and Plants in Mesoamerica (Novi Eboraci: Springer, 2016) pp. 417-438 (Paginae selectae apud Google Books)