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Key to families | Table of families and genera
1. Inflorescence pendent in fruit, of 15–50 2-winged nutlets, not enclosed in husk; fruit body (except wings) 6–9 mm diam; main axis of leaf ± winged (at least below leaflet attachment distally) ..... [Pterocarya stenoptera]
1' Inflorescence erect in fruit, of 1–3 unwinged nuts, enclosed in leathery husk, fruit (including husk) 2–5 cm diam; main axis of leaf not winged
2. Twig centers not chambered; staminate inflorescences clustered, ± sessile, stamens 3–10(15) per flower; fruit husk splitting longitudinally, separating from fruit ..... CARYA
2' Twig centers chambered; staminate inflorescence solitary, sessile, stamens 15–40 per flower; fruit husk not splitting, not separating from fruit ..... JUGLANS
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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