Pignut Hickory Carya glabra (P. Miller) Sweet    Synonyms: Hicoria glabra.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Juglandales   >   Family Juglandaceae   >   Genus Carya   

Status:

Common in the southern Appalachians.

Description:

Bark is tight. Leaves are smallish and generally have only five leaflets. Buds are small and lack hairs, as do the leafstalks and twigs (hence the species epithet "glabra," meaning smooth, contrasting this species with Carya tomentosa, Mockernut Hickory, which is named for its hairy or tomentose buds, leafstalks, and twigs). The fruits of Pignut Hickory are smaller than those of both Mockernut and Shagbark hickories, and usually lack wings, sometimes having a stalk-like base.

Where to find:

Occurs in dry woods or open pastures throughout Maryland. Very common on Bear Island and other bedrock-terrace areas of the Potomac River gorge in Montgomery County.

Relationships:

Has been recorded as a host plant for Banded Hairstreak.

Host plant for various species of moths including Polyphemus Moth, Pecan Leafminer Moth, Epione Underwing Moth, Oldwife Underwing Moth, Residua Underwing Moth, Yellow-gray Underwing Moth.

There are 101 records in the project database.

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Pignut Hickory in Anne Arundel Co., Maryland (8/4/2011). Photo by Bill Harms. (MBP list)

Pignut Hickory in Caroline Co., Maryland (9/12/2020). (c) tomfeild, some rights reserved (CC BY-NC). Photo by Tom Feild. (MBP list)

Pignut Hickory in Worcester Co., Maryland (1/12/2020). Photo by Jim Brighton. (MBP list)

Pignut Hickory in Worcester Co., Maryland (9/14/2016). Photo by Jane Hill. (MBP list)

Pignut Hickory growing in Garrett Co., Maryland (11/25/2018). Photo by Boyer and McDowell. (MBP list)

Pignut Hickory end bud, in Harford Co., Maryland (8/28/2016). Photo by Kirsten Johnson. (MBP list)

Pignut Hickory in Baltimore City, Maryland (4/10/2019). Photo by Kirsten Johnson. (MBP list)

Pignut Hickory in Caroline Co., Maryland (9/12/2020). (c) tomfeild, some rights reserved (CC BY-NC). Photo by Tom Feild. (MBP list)

Pignut Hickory, newly emerging leaves, in Montgomery Co., Maryland (4/23/2017). Photo by Bill Hill. (MBP list)

Pignut Hickory budding in Kent Co., Maryland (3/27/2016). Photo by Nancy Martin. (MBP list)

A Pignut Hickory twig with leaf scars in Worcester Co., Maryland (1/12/2020). Photo by Jim Brighton. (MBP list)

The fruit of Pignut Hickory in Anne Arundel Co., Maryland (8/4/2011). Photo by Bill Harms. (MBP list)

The unhusked fruit of Pignut Hickory in Worcester Co., Maryland (1/12/2020). Photo by Jim Brighton. (MBP list)

The unhusked fruit, showing stalk-like base, of Pignut Hickory in Worcester Co., Maryland (1/12/2020). Photo by Jim Brighton. (MBP list)

Pignut Hickory nuts in Kent Co., Maryland (3/27/2016). Photo by Nancy Martin. (MBP list)

Pignut Hickory in Anne Arundel Co., Maryland (9/5/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)


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