TWIGS AND LEAVES
TYPES OF TWIG BRANCHING
[Alternate] [Whorled] [Opposite]
LEAF TYPES
[Simple] [Compound] Doubly Compound [Opposite] Leaves [Alternate] Leaves Awl-Shaped Needles Pine Needles Scale-like Needles
PARTS OF LEAF
[Lamina] or blade Base Stem [Apex] Leaf margin Primary vein Secondary or [lateral] [veins] [Petiole] ([Sessile] leaves have no petiole but are attached directly to the stem)