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lenticels
small openings in the bark that allow air to enter the stem
spirelike branching
trees, such as pines and firs, that grow tall and straight with small branches coming from a large central shaft
growth rings *
alternating patterns in a woody stem consisting of distinct layers of springwood and summerwood
rind
the outer covering of a herbaceous monocot stem
xylem
wood is another name for this tissue
terminal
the large bud at the end of a twig that allow a stem to grow in length is this bud.
internode *
the section of a twig between nodes
bark *
the outer section of a woody stem, which protects the stem and contains the phloem
heartwood *
the older, inner wood of a stem that can no longer conduct sap but serves only as support for the stem
vascular *
the bundles of xylem and phloem tubes in a herbaceous stem