Plant · GBIF taxon 3054299
Bitternut Hickory
Carya cordiformisAlso known as Yellowbud Hickory, Bitternut, Swamp Hickory
Bitternut hickory stands out in winter forests by its bright sulfur-yellow, naked buds that cap slender twigs. Unlike its rough-barked kin, it displays tight, shallowly furrowed gray bark that forms a delicate diamond pattern even into maturity. Squirrels and small rodents readily harvest the thin-shelled, bitter nuts, while dozens of native moth caterpillars rely on its compound foliage throughout the summer.
DeciduousHardwoodNative Tree

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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Autotrophic (photosynthetic)
Predators
- Hickory bark beetle
- Walnut caterpillar
- Eastern gray squirrel
ThreatsHickory bark beetle outbreaks, habitat clearance, and fungal cankers
HabitatsMoist bottomlands, floodplain forests, riverbanks, and rich upland woods
Life span150–200 years
Size / weightNot available
Classification
- OrderFagales
- FamilyJuglandaceae
- GenusCarya
- SpeciesCarya cordiformis
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Winter Identification: Look for the distinct sulfur-yellow, valvate buds that lack protective bud scales.
- Fruit Recognition: Examine the small, four-winged husk splitting halfway to release a bitter, smooth nut.
- Habitat Clues: Search along moist floodplains and stream terraces where it reaches its greatest abundance.
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