"3.1" . _:vb6845255 . _:vb6845255 "A strong central leader may result in essentially horizontal branches resembling a \"telephone pole.\""@en . _:vb6845254 . _:vb6845255 "1975, David J. De Laubenfels, Mapping the world's vegetation: regionalization of formations and flora, page 82:"@en . . _:vb6845254 "(botany) A fast-growing terminal shoot of a woody plant."@en .