Elizabeth Jill Cowley (born 1940) is a British botanist, who has worked at the Royal Botanic Gardens, Kew. Her interests have included the tropical flora of East Africa and the genus Roscoea.
Cowley, E.J. (1988), Burmanniaceae, Flora of Tropical East Africa, Rotterdam: A.A. Balkema, ISBN 978-90-6191-340-5
Cowley, E.J. (1989), Smilacaceae, Flora of Tropical East Africa, Rotterdam: A.A. Balkema, ISBN 978-90-6191-347-4
Cowley, Jill (2007), The genus Roscoea, Royal Botanic Gardens, Kew, ISBN 978-1-84246-134-1
Cowley, E.J. (1980), "A new species of Roscoea (Zingiberaceae) from Nepal", Kew Bulletin, 34 (4): 811–812, doi:10.2307/4119072
Cowley, E.J. (1982), "A revision of Roscoea (Zingiberaceae)", Kew Bulletin, 36 (4): 747–777, JSTOR 4117918, doi:10.2307/4117918
Cowley, E.J. (1983), "173. Marantacées", in Bosser, J.; Cadet, T.; Gueho, J.; et al., Flore des Mascareignes : la Réunion, Maurice, Rodrigues 171. Zingiberacées à 176. Bromeliacées, Mauritius: Sugar Industry Research Institute, etc., OCLC 9896555
Cowley, Jill & Wilford, Richard (1998), "Plate 349. Roscoea tumjensis", Curtis's Botanical Magazine, 15 (4): 220–225, doi:10.1111/1467-8748.00176
