10. Leaf and Bud Arrangement opposite — leaves occurring in pairs at the nodes alternate — leaves arranged singly at intervals along the stems whorled — leaves occurring three or more at a single node
13. Leaf Margins entire — a leaf margin that is smooth without teeth or lobes undulate — a leaf margin that is wavy serrate — a leaf margin that has pointed teeth that are directed upward doubly serrate — a serrate leaf margin where the primary teeth support another set of teeth crenate — a leaf margin that has rounded teeth lobed — a segmented leaf having pointed or rounded extensions separated by sinuses that do not extend more than halfway to the midrib sinus — the space or indentation between the lobes of a leaf blade
14. Leaf Base cuneate — wedge-shaped obtuse — rounded cordate — heart-shaped truncate — squared or abruptly cut off oblique — asymmetrical, unequally sided
15. Leaf Apices acute — slightly pointed acuminate — sharply pointed bristle-tipped — sharply pointed tip truncate — squared or abruptly cut off obtuse — rounded
19. Fruit Types berry — a simple, fleshy fruit, with seeds embedded in a pulpy mass (persimmon) drupe — a one-seeded, fleshy fruit with the seed inclosed in a stony wall (cherry, sugarberry, holly) capsule — a dry fruit which splits open into two or more parts at maturity (sourwood) legume — a dry fruit with two seams in the outer wall (black locust) nut — a hard-shelled, dry fruit, sometimes with a outer covering or husk (hickory, oak acorn, black walnut) dehiscent — the opening by slits or valves of an outer fruit covering indehiscent — an outer fruit covering that does not open by slits or valves pome — a fleshy fruit, with seeds incased by a papery wall (apple) nutlet — a small nut (riverbirch) samara — a winged, one-cell, one-seeded, dry fruit (elm; double samara — maple) multiple — a fruit formed from several flowers into a single structure having a common axis multiple of capsules -- sweetgum multiple of follicles — magnolia multiple of samaras — yellow-poplar, ash multiple of nutlets — sycamore, birch
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