Dig deeper at SERNEC, a consortium of southeastern herbaria.
You may also want to check Trees, Shrubs, and Woody Vines of North Carolina
Read more about Big Shellbark Hickory at Vascular Plants of North Carolina.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Fagales
Manual of the Southeastern Flora (Small, 1933)
Big Shellbark Hickory, Kingnut Hickory
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Ron Lance jkm110219_651
Note variation in husk thickness & dehiscence, and nut shape, size & sweetness.
Richard and Teresa Ware rtw_carya_laciniosa_16
Bark gray, scaly, with long strap-like plates, per Woody Plants of the Blue Ridge.
Richard and Teresa Ware rtw_carya_laciniosa_8
Leaf rachises may persist on twig into winter, per Woody Plants of the Blue Ridge.
Richard and Teresa Ware rtw_carya_laciniosa_19
Twigs sandy, buff, or orange-brown; terminal bud abruptly tapered, per Woody Plants of the Southeastern US: A Winter Guide.
Ron Lance rwl_caryalaciniosa
Leaflets 7 (usually) to 9, lance-shaped to obovate, margins finely serrate, per Native Trees of the Southeast, An Identification Guide.
Richard and Teresa Ware rtw_carya_laciniosa_20
Husks about 1/4" thick, lacking wings; seeds edible and sweet, per Native Trees of the Southeast, An Identification Guide.
Ron Lance jkm110219_636b
Fruits the largest of the genus (to 8cm long!). Husks 8-14mm thick, per Woody Plants of the Southeastern US: A Winter Guide.