Carya Nutt. Carya Carya, (Wangenh.) C. Koch

2. Carya Nutt. View in CoL 1

Twigs with continuous pith. Buds with scales, sessile. Leaves not aromatic. Male catkins 3 or more together, many-flowered, pendent. Female flowers in 2- to 10-flowered terminal racemes. Fruit a large drupe; mesocarp dehiscing more or less completely into 4 valves. 1 Bud-scales 4-6, valvate, bright yellow; fruit 4-winged in upper half 1. cordiformis

1 Bud-scales 6-12, imbricate, not bright yellow; fruit unwinged or slightly winged near apex

2 Bark not scaling; buds 8-12 mm; fruit slightly winged near apex 2. glabra

2 Bark scaling; buds 13-25 mm; fruit unwinged 3. alba

1. C. cordiformis (Wangenh.) C. Koch View in CoL , Dendrologie 1: 597 (1869)

(C. amara (Michx fil.) Nutt. ).

Tree up to 30 m; bark light brown, scaly. Bud-scales 4-6, valvate, bright yellow. Leaflets 8-15 cm, 5-9, ovate-lanceolate to lanceolate, acuminate, serrate, pubescent beneath when young. Fruit 2-3-5 cm, obovoid to subglobose, 4-winged in upper half; pericarp thin, splitting to below the middle; stone grey, almost smooth. Planted for timber in Germany. [Ge.] (E. North America.)