1. Adedeji O, Faluyi JO (2006) Morphological, Agrobotanical and Reproductive studies in 35 Accessions of Panicum maximum Jacq. in South Western Nigeria. Res J Bot 1(2):67–74
2. Adedeji O, Illoh HC (2005) Vegetative and floral morphological studies of some species of Hibiscus Linn. in Nigeria. Ife J Sci 7(1):1–13. https://doi.org/10.4314/ijs.v7i1.3214
3. Adegbite EA (1991) Biosystematic studies in some species of the genus Aspilia Thouars. (Heliantheae–Asteraceae) in Nigeria. Unpublished Ph.D. Thesis, Obafemi Awolowo University, Ile-Ife
4. Akobundu IO, Agyakwa CW (1998) A handbook of West African weeds, 2nd edn. International Institute of Tropical Agriculture, Ibadan
5. Biodiversity International IRRI and WARDA, (2007) Descriptor for Wild and Cultivated Rice (Oryza spp.). Biodiversity International, Rome, Italy. International Rice Research Institute, Los Banos, Philippines; WARDA, Africa Rice Centre, Cotonou, Benin.