obsolete_juvenile leaf true http://purl.obolibrary.org/obo/PO_0006339 replacing BTO_0003147 in favor of http://purl.obolibrary.org/obo/PO_0006339 Distinct from adult leaves, being characterized by particular anatomical traits namely, wax and trichome distribution, presence or absence of epidermal cell types, cell wall shape and biochemistry. The first juvenile leaves are e.g. the embryonic leaves found in the grass kernel (caryopsis). true 2.81