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- Carya tomentosa
Carya tomentosa — mockernut hickory
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Facts
Mockernut hickory is the most abundant of the hickories in much of its range, but it reaches its northern limit in southern New England. In mast years, it produces good crops of relatively large nuts, which are an important food for wildlife. Because of the hardness of its wood, most of the harvested wood goes to making tool handles. The Cherokee made much use of mockernut hickory, using the wood to make tool handles and arrow shafts, and the inner bark to make baskets, dress cuts, and make a tea to treat colds and other conditions.
Habitat
Forests, talus and rocky slopes, woodlands
New England distribution
Adapted from BONAP data
Native: indigenous.
Non-native: introduced (intentionally or unintentionally); has become naturalized.
County documented: documented to exist in the county by evidence (herbarium specimen, photograph). Also covers those considered historical (not seen in 20 years).
State documented: documented to exist in the state, but not documented to a county within the state. Also covers those considered historical (not seen in 20 years).
Note: when native and non-native populations both exist in a county, only native status is shown on the map.
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Characteristics
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Massachusetts
- Rhode Island
- Growth form
- the plant is a tree
- Leaf type
- the leaf blade is compound (made up of two or more discrete leaflets
- Leaves per node
- there is one leaf per node along the stem
- Leaf blade edges
- the edge of the leaf blade has teeth
- Leaf duration
- the leaves drop off in winter (or they wither but persist on the plant)
- armature on plant
- the plant does not have spines, prickles, or thorns
- Leaf blade length
- 300–500 mm
- Leaf stalk
- the leaves have leaf stalks
- Fruit type (general)
-
- the fruit is dry and splits open when ripe
- the fruit is dry but does not split open when ripe
- Bark texture
- the bark of an adult plant is ridged or plated
- Twig winter color
-
- brown
- red
- Bud scale number
- there are three or more scales on the winter bud, and they overlap like shingles, with one edge covered and the other edge exposed
-
Buds or leaf scars
- Bud scale number
- there are three or more scales on the winter bud, and they overlap like shingles, with one edge covered and the other edge exposed
- Bud scar shape (Fraxinus)
- NA
- Collateral buds
- there are no collateral buds on the sides of the branches
- Leaf scar arrangement
- there is one leaf scar per node on the stem or twig
- Superposed buds
- there are no superposed buds on the branch
- Terminal bud
- the branch has a terminal bud on it
- Winter bud scale hairs
-
- the winter bud scales are hairy
- the winter bud scales have no hairs on them
- Winter bud scales
- the winter bud is perulate (partially or completely covered with one or more scales)
- Winter bud shape
- the winter buds are ovoid (egg-shaped)
- Winter bud stalks
- the winter buds have no stalks
-
Flowers
- Carpels fused
- the carpels are fused to one another
- Enlarged sterile flowers
- there are no enlarged sterile flowers on the plant
- Flower petal color
- NA
- Flower symmetry
- there are two or more ways to evenly divide the flower (the flower is radially symmetrical)
- Hairs on ovary (Amelanchier)
- NA
- Hypanthium present
- the flower does not have a hypanthium
- Inflorescence hairs
- there are hairs on some part of the inflorescence
- Inflorescence position
- the inflorescences grow on the twigs
- Inflorescence type
- the inflorescence is an ament (catkin; slender, usually pendulous inflorescence with crowded unisexual flowers)
- Number of pistils
- 1
- Ovary position
- the ovary is below the point of petal and/or sepal attachment
- Petal and sepal arrangement
-
- the flower includes only one cycle of petals or sepals
- the flower lacks sepals and petals
- Petal appearance
- NA
- Petal fusion
- NA
- Sepal appearance
- NA
- Sepal cilia (Ilex)
- NA
- Sepal tip glands
- NA
- Sepals fused only to sepals
- NA
- Stamen number
-
- 10
- 11
- 12
- 13 or more
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- Stamen position relative to petals
- NA
-
Fruits or seeds
- Berry color
- NA
- Fruit tissue origin
- there are no flower parts that form part of the fruit
- Fruit type (general)
-
- the fruit is dry and splits open when ripe
- the fruit is dry but does not split open when ripe
- Fruit type (specific)
-
- the fruit is a drupe (fleshy, with a firm inner ovary wall that encloses a single seed)
- the fruit is a nut (dry and indehiscent, with a hard wall, usually containing only one seed and usually subtended by an involucre)
- Nut with spines (Fagaceae)
- NA
- Wings on fruit
- there are no wings on the fruit
-
Glands or sap
- Sap color
- the sap is clear and watery
- Stalked glands on fruit (Rosa)
- NA
-
Growth form
- Growth form
- the plant is a tree
-
Leaves
- Hairs on underside of leaf blade
- the underside of the leaf has hairs on it
- Hairs on upper side of leaf blade
- the upper side of the leaf is fuzzy or hairy
- Leaf blade base shape
-
- the base of the leaf blade is cuneate (wedge-shaped, tapers to the base with relatively straight, converging edges), or narrow
- the base of the leaf blade is rounded
- Leaf blade edges
- the edge of the leaf blade has teeth
- Leaf blade edges (Acer)
- NA
- Leaf blade flatness
- the leaf is flat (planar) at the edges
- Leaf blade hairs
- the leaf blade has tangled or woolly-looking hairs, without glands
- Leaf blade length
- 300–500 mm
- Leaf blade scales
-
- there are no scales on the leaf blades
- there are scales on the leaf blades
- Leaf blade shape
-
- the leaf blade is elliptic (widest near the middle and tapering at both ends)
- the leaf blade is obovate (egg-shaped, but with the widest point above the middle of the leaf blade)
- the leaf blade is ovate (widest below the middle and broadly tapering at both ends)
- Leaf blade texture
-
- the leaf blade is coriaceous (has a firm, leathery texture)
- the leaf blade is herbaceous (has a leafy texture)
- Leaf blade translucent dots
- there are no translucent dots on the leaf blade
- Leaf blade vein pattern
- the main veins of the leaf blade are pinnate (the secondary veins branch off at intervals from the main central vein) and non-arcuate (not arched towards the leaf tip)
- Leaf blade veins
- the leaf blade has one main vein running from the base toward the tip
- Leaf duration
- the leaves drop off in winter (or they wither but persist on the plant)
- Leaf form
- the plant is broad-leaved (with broadly flattened leaf blades)
- Leaf lobe tips (Quercus)
- NA
- Leaf midrib glands
- the midrib of the leaf blade lacks glands on the upper surface
- Leaf stalk
- the leaves have leaf stalks
- Leaf stalk attachment to leaf
- the petiole attaches at the basal margin of the leaf blade
- Leaf stalk nectaries
- there are no nectaries on the leaf stalk
- Leaf stalk shape
- the leaf stalk is not flattened
- Leaf teeth
-
- the leaf blade margin is serrate (with forward-pointing) or dentate (with outward-pointing) with medium-sized to coarse teeth
- the leaf blade margin is serrulate (with forward-pointing) or denticulate (with outward-pointing) with tiny teeth
- Leaf teeth hairs (Carya)
- there are no tufts of hairs on the edges of the leaf blade
- Leaf type
- the leaf blade is compound (made up of two or more discrete leaflets
- Leaves per node
- there is one leaf per node along the stem
- Specific leaf type
- the leaf is compound, with a single terminal leaflet and more than two additional leaflets
- Stipules
- there are no stipules on the plant, or they fall off as the leaf expands
-
Place
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Massachusetts
- Rhode Island
- Specific habitat
-
- forests
- talus or rocky slopes
- woodlands
-
Scent
- Plant odor
-
- the plant does not have much of an odor, or it has an unpleasant or repellant odor
- the plant has a pleasantly aromatic odor
-
Stem, shoot, branch
- Aerial roots
- the plant has no aerial roots
- Bark texture
- the bark of an adult plant is ridged or plated
- Branch brittleness (willows only)
- NA
- Branch cross-section
- the branch is circular in cross-section, or it has five or more sides, so that there are no sharp angles
- First-year cane (Rubus)
- NA
- Lenticels on twigs
- there are clearly lenticels on the twigs
- Pith type
- the pith inside the twig is solid, completely filled with spongy tissue
- Short shoots
- there are no peg- or knob-like shoots present
- Twig bloom
- there is no bloom on the twig
- Twig hairs
- the twigs have hairs, but the hairs do not have glands
- Twig papillae (Vaccinium species only)
- NA
- Twig scales
- there are scales on the twig surface
- Twig winter color
-
- brown
- red
- Wings on branch
- the branch does not have wings on it
- armature on plant
- the plant does not have spines, prickles, or thorns
Wetland status
Not classified
In New England
Distribution
- Connecticut
- absent
- Maine
- absent
- Massachusetts
- absent
- New Hampshire
- absent
- Rhode Island
- absent
- Vermont
- absent
Conservation status
Exact status definitions can vary from state to state. For details, please check with your state.
- Massachusetts
- unranked (S-rank: SNR)
From Flora Novae Angliae dichotomous key
5. Carya tomentosa (Poir. in Lam.) Nutt. N
mockernut hickory. Carya alba (L.) Nutt. ex Ell., pro parte; C. tomentosa (Poir. in Lam.) Nutt. var. subcoriacea (Sarg.) Palmer & Steyermark; Hicoria tomentosa (Poir. in Lam.) Raf.; Juglans alba L., pro parte; Juglans tomentosa Poir in Lam. • CT, MA, RI; also reported from NH Kartesz (1999), but specimens are unknown. Mesic to dry-mesic soils of forests, woodlands, and rocky slopes. Early reports of this species in VT (e.g., Fernald 1950b) were discredited by Jenkins and Zika (1995), the reports apparently based on specimens of Carya ovata labeled as C. alba (this latter name having been used for both species and favored for rejection by several authors).
Native to North America?
Yes
Sometimes confused with
- Carya glabra:
- branchlets slender, mostly 2-4.1 mm thick, and husk 2-5 mm thick (vs. C. tomentosa, with branchlets stout, mostly 4-9 mm thick, and husk of fruit 4-13 mm thick).
Synonyms
- Carya alba (L.) Nutt. ex Ell., in part
- Carya tomentosa (Poir. in Lam.) Nutt. var. subcoriacea (Sarg.) Palmer & Steyermark
- Hicoria tomentosa (Poir. in Lam.) Raf.
- Juglans alba L., in part
- Juglans tomentosa Poir. in Lam.