Bud at the end of the twig.
Buds at nearly the end of a twig, but typically off center or “crooked” creating a zig-zag growth pattern
Buds are along the twig.
Buds or leaves are alternating position on the twig
Buds or leaves are opposite of each other on the twig.
Buds or leaves that radiate from a single point and surround the stem. A whorl consists of at least three elements. A pair of opposite leaves is not called a whorl.
one leaf blade attached to a stem ending at a bud (ex: maples, oaks)
multiple leaf blades (leaflets) and can be pinnately (long; ex: ashes, walnuts) or palmately (think palm of your hand; ex: buckeyes, horsechestnut)
the edge of the a leaf or leaflet
Generally referring to a leaf edge (margin), think of a bread knife blade
Both male and female reproductive structures (flowers or cones) on an individual plant (ex: elms, pines)
Male and female reproductive structures (flowers or cones) on separate plants (ex: Kentucky coffeetree, ginkgo)
Lenticels: small white dots or lines on bark, twigs, or fruit