Esther OO, Gabriel AS, Adekunle OO. Leaf epidermal and petiole anatomical features as taxonomic characters in some Vernonia species in Nigeria. JBRB [Internet]. 2022 Jul. 1 [cited 2024 Dec. 4];20(1):1388-97. Available from: https://bio-research.com.ng/index.php/home/article/view/116