Carya glabra (Mill.) Sweet
Pignut hickory
Pignut hickory is common, but not abundant, in forests in the eastern United States.
Plants: Pignut hickory is up to 60′ (18 m) high and 35′ (10 m) wide.
Leaves: Shiny green, bright yellow in fall, in groups of 5 or 7 leaflets.
Flowers: Male flowers are catkins 2–3″ (5–7.6 cm) long, hanging in groups of 3. Female flowers are short, clustering at the ends of branches.
Fruits: Seeds are 1–2″ (2.5–5 cm) in diameter, enclosed in thin husks. They may be oval or pear-shaped.
Habitats: Mesic to moist soils on hillsides and ridges.
By Steve Hurst @ USDA-NRCS PLANTS Database. 
Online References:
References:
7/26/2025 · River Point Conservation Area, Falmouth, Maine · ≈ 1½ × 1′ (48 × 32 cm) 
7/30/2017 · Jason’s Cutoff and Nearby Trails, Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 4 × 2½″ (10 × 7.3 cm) 
7/26/2025 · River Point Conservation Area, Falmouth, Maine · ≈ 16 × 11″ (40 × 27 cm) 
7/28/2009 · Near Nashua River Boat Ramp, Groton, Massachusetts · ≈ 10 × 7″ (26 × 17 cm) 
ID is uncertain 
6/13/2025 · River Point Conservation Area, Falmouth, Maine 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Rosidae | Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more |
| Order | Fagales | Birch, she-oak, beech, walnut, bayberry, others |
| Family | Juglandaceae | Walnut family |
| Genus | Carya | Greek κάρυον, “nut” |
| Species | glabra | “Smooth or hairless” |
Carya glabra description by Thomas H. Kent, not updated.
© FloraFinder.org. All rights reserved.
