Pumpkin Ash
ExplorePlants
Pumpkin Ash
fraxinus profunda
The Pumpkin Ash (Fraxinus profunda) is a majestic deciduous tree native to the wet bottomlands, swamps, and floodplains of eastern North America. Named for the unique, swollen, pumpkin-like shape of its trunk base when growing in standing water, this impressive tree plays a vital role in wetland ecosystems. It can reach heights of up to 30 meters, standing tall above soggy soils where other tree species struggle to survive. Its presence provides crucial canopy shade, nesting habitat, and food for a variety of wetland wildlife. Sadly, like many North American ashes, the Pumpkin Ash is facing a severe threat from the invasive Emerald Ash Borer beetle, making wild encounters with healthy mature specimens increasingly rare and valuable for conservation efforts.
Habitat: Found in deeply flooded swamps, wet bottomlands, floodplains, and river basins across eastern and central North America.
Appearance
This large tree is best identified by its distinctive buttressed or swollen lower trunk, which resembles a pumpkin when submerged in swampy environments. Its bark is thick, gray-brown, and deeply furrowed into a diamond-shaped pattern. The compound leaves are oppositely arranged, typically featuring 7 to 9 large, velvety leaflets with finely toothed or smooth margins and fuzzy undersides. In autumn, these leaves turn warm shades of bronze and yellow. During late summer, female trees produce large, drooping clusters of winged seeds called samaras, which are notably larger and wider than those of other ash species.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderLamialesFamilyOleaceaeGenusFraxinus
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Its leaves feature exceptionally hairy stalks and undersides compared to other ash species, helping to reduce water loss.
Its seeds (samaras) are the largest of any ash species in North America, perfectly adapted for aquatic travel.
Pumpkin Ash wood is lightweight yet surprisingly strong, historically used for making oars, tool handles, and crates.
The characteristic 'pumpkin' swelling at the base of the tree only develops when it grows in areas that are continuously flooded.
Special abilities
Ability
Buttressed Trunk Stability
The swollen, flare-like base of the trunk provides vital physical stability in loose, waterlogged, and muddy swamp soils.
Ability
Anoxic Root Tolerance
It features specialized physiological adaptations that allow its roots to survive and function in low-oxygen, water-saturated conditions.
Ability
Hydrochorous Seed Dispersal
Its large, winged samaras are designed to float on water, utilizing seasonal flood currents to colonize new wetland areas.
Measurements & details
- Length
- 1500-3000 cm
- Lifespan
- 80-150 years
Diet & Feeding
As a photoautotroph, the Pumpkin Ash produces its own organic compounds using sunlight, water, carbon dioxide, and essential soil nutrients.
Primary Foods
- Sunlight
- Water
- Carbon Dioxide
- Nitrogen
- Phosphorus
- Potassium
Foraging Method
- Photosynthesis
Ecological connections
eaten by
Emerald Ash Borer
Agrilus planipennis
The highly destructive invasive beetle larvae burrow through the inner bark, disrupting nutrient flow and killing the tree.
host plant
Eastern Tiger Swallowtail
Papilio glaucus
The caterpillars of this beautiful butterfly feed on the leaves of the Pumpkin Ash as a primary host plant.
eaten by
Wood Duck
Aix sponsa
Wood ducks feed heavily on the large, buoyant seeds (samaras) that fall into the swamp water.
Traits
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Also known as
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Collections
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Pumpkin Ash?
The easiest way to identify Pumpkin Ash is to use the Snappit nature identifier app.
How long is Pumpkin Ash?
1500-3000 cm
How long does Pumpkin Ash live?
80-150 years
What does Pumpkin Ash eat?
As a photoautotroph, the Pumpkin Ash produces its own organic compounds using sunlight, water, carbon dioxide, and essential soil nutrients.
Where is Pumpkin Ash usually found?
Found in deeply flooded swamps, wet bottomlands, floodplains, and river basins across eastern and central North America.
How does Pumpkin Ash hunt?
Photosynthesis
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