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Juglandaceae
See list of 2 genera in this familyThough the fruits of New England representatives of the family are usually described as a nut, but they are in fact a drupe with a fibrous exocarp that is either dehiscent ( Carya) or indehiscent ( Juglans).
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1a. Leaves with 11–19 leaflets, the middle lateral leaflets the largest; branchlets with chambered pith; drupe with an indehiscent exocarp (i.e., husk); each staminate ament borne separately; staminate flowers with 8–40 stamens and glabrous anthers
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1b. Leaves with 5–9 (–11) leaflets, the terminal leaflet the largest; branchlets with solid pith; drupe with a 4-valved, dehiscent exocarp; staminate aments borne in clusters of 3; staminate flowers with 3–10 stamens and pilose anthers
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Each photo represents one genus in this family.