PLANTS: Monoecious trees or large shrubs; pith chambered. LEAVES: deciduous, odd-pinnate, alternate, aromatic, leaflets serrate or entire, glandular-dotted beneath. FLOWERS: staminate catkins lateral, axillary, pendant, on old wood; pistillate spike 1-25 flowered, terminal on new leafy growth; staminate and pistillate flowers with 2-6 bracts and 4 sepals; carpels 2(3-4), with 2 elongate recurved style branches; stigmas plumose. FRUITS: husk indehiscent. NOTES: Ca. 20 spp. in the Americas and Eurasia. (Classical Latin name for the walnut). Manning, W. E. 1957. J. Arnold Arbor. 38:121-150. REFERENCES: Laferriere, Joseph E. 1994. Juglandaceae. J. Ariz. – Nev. Acad. Sci. Volume 27, 219.