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Crataegus flabellata — Gray's hawthorn

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Facts

Gray's hawthorn is also called fanleaf hawthorn for its wide, symmetrical, triangular leaves. The spines on this shrub can reach 4.5 cm (almost 2 inches) in length. The genus name, Crataegus, derives from the Greek word "kratos," which means strength, referring to the very strong wood of hawthorn, which is sometimes used to make tool handles.

Habitat

Anthropogenic (man-made or disturbed habitats), forest edges, meadows and fields

New England distribution

Adapted from BONAP data

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North America distribution

Adapted from BONAP data

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Characteristics

Habitat
terrestrial
New England state
  • Maine
  • Massachusetts
  • New Hampshire
  • Vermont
Growth form
  • the plant is a shrub (a woody plant with several stems growing from the base)
  • the plant is a tree
Leaf type
the leaf blade is simple (lobed or unlobed but not separated into leaflets)
Leaves per node
there is one leaf per node along the stem
Leaf blade edges
  • the edge of the leaf blade has lobes, or it has both teeth and lobes
  • 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 has spines, prickles, or thorns
Leaf blade length
40–60 mm
Leaf blade width
20–50 mm
Leaf stalk
the leaves have leaf stalks
Fruit type (general)
the fruit is fleshy
Bark texture
the bark of an adult plant is thin and smooth
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
Show all characteristics

  • 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
    Bundle scar number
    3
    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
    Winter bud scale hairs
    the winter bud scales have no hairs on them
    Winter bud shape
    the winter buds are globose (spherical, globe-shaped)
    Winter bud stalks
    the winter buds have no stalks

  • Flowers

    Anther color
    there is a noticeable pink, reddish or purplish tint to the anthers
    Carpels fused
    the carpels are fused to one another
    Enlarged sterile flowers
    there are no enlarged sterile flowers on the plant
    Flower petal color
    white
    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 has 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 a corymb (with long lower branches and shorter upper branches, giving it a more or less flat-topped look)
    Number of pistils
    1
    Ovary position
    • the ovary is above the point of petal and/or sepal attachment
    • the ovary is below the point of petal and/or sepal attachment
    Petal and sepal arrangement
    the flower includes two cycles of petal- or sepal-like structures
    Petal appearance
    the petals are thin and delicate, and pigmented (colored other than green or brown)
    Petal fusion
    the perianth parts are separate
    Sepal cilia (Ilex)
    NA
    Sepal tip glands
    • there are glands at the tips of the sepal lobes
    • there are no glands at the tips of the sepal lobes
    Sepals fused only to sepals
    the sepals are fused to each other (not other flower parts), at least near their bases
    Stamen number
    • 10
    • 5
    • 6
    • 7
    • 8
    • 9
    Stamen position relative to petals
    NA
    Stamens fused
    the stamens are not fused to one another

  • Fruits or seeds

    Berry color
    red
    Fruit tissue origin
    the hypanthium of the flower becomes part of the fruit
    Fruit type (general)
    the fruit is fleshy
    Fruit type (specific)
    the fruit is a berry (fleshy, with the wall enclosing one or more sections, with two or more seeds)
    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 shrub (a woody plant with several stems growing from the base)
    • 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
    • the upper side of the leaf is not hairy, or has very few hairs
    Leaf blade base shape
    • The base of the leaf blade is cordate (heart-shaped, with rounded lobes)
    • the base of the leaf blade is rounded
    • the base of the leaf blade is truncate (ends abruptly in a more or less straight line as though cut off)
    Leaf blade base symmetry
    the leaf blade base is symmetrical
    Leaf blade bloom
    the underside of the leaf has no noticeable bloom
    Leaf blade edges
    • the edge of the leaf blade has lobes, or it has both teeth and lobes
    • 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 hairs on the leaf blade are different from the choices given
    Leaf blade length
    40–60 mm
    Leaf blade scales
    there are no scales on the leaf blades
    Leaf blade shape
    • the leaf blade is orbicular (roughly circular, as wide as long)
    • 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)
    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 blade width
    20–50 mm
    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
    • the leaf stalk has nectaries on it
    • there are no nectaries on the leaf stalk
    Leaf stalk shape
    the leaf stalk is not flattened
    Leaf teeth
    the leaf blade margin is undulate (wavy), but does not have teeth
    Leaf teeth hairs (Carya)
    NA
    Leaf type
    the leaf blade is simple (lobed or unlobed but not separated into leaflets)
    Leaves per node
    there is one leaf per node along the stem
    Specific leaf type
    the leaves are simple (lobed or unlobed but not separated into leaflets
    Stipules
    the plant has stipules

  • Place

    Habitat
    terrestrial
    New England state
    • Maine
    • Massachusetts
    • New Hampshire
    • Vermont
    Specific habitat
    • edges of forests
    • man-made or disturbed habitats
    • meadows or fields

  • Scent

    Plant odor
    the plant does not have much of an odor, or it has an unpleasant or repellant odor

  • Stem, shoot, branch

    Aerial roots
    the plant has no aerial roots
    Bark texture
    the bark of an adult plant is thin and smooth
    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
    Pith shape
    the outline of the pith in a twig is roughly round
    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 few or no hairs on them
    Twig papillae (Vaccinium species only)
    NA
    Twig scales
    there are no 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 has spines, prickles, or thorns

Wetland status

Not classified

In New England

Distribution

Connecticut
present
Maine
present
Massachusetts
present
New Hampshire
present
Rhode Island
absent
Vermont
present

Conservation status

Exact status definitions can vary from state to state. For details, please check with your state.

Massachusetts
rare to uncommon (S-rank: S2S3)
Massachusetts
unranked (S-rank: SNR)

Subspecies and varieties

Crataegus flabellata (Bosc ex Spach) K. Koch var. flabellata is known from MA, ME, NH, VT. C. flabellata var. grayana (Egglest.) Palmer is known from CT, MA, ME, NH, VT.

From Flora Novae Angliae dichotomous key

13.  Crataegus flabellata (Bosc ex Spach) K. Koch N

Gray’s hawthorn.  13a. Crataegus grayana Egglest.;  13b. Crataegus crudelis Sarg.; 
 C. lemingtonensis Sarg.; C. propria Sarg. • MA, ME, NH, VT. Forest edges, successional fields, roadsides, early successional forests, forest clearings.

1a.  Androecium with 2 cycles of stamens … 13a. C. flabellata var. grayana (Egglest.) Palmer

1b.  Androecium with 1 cycle of stamens … 13b. C. flabellata var. flabellata

Variety grayana is known from CT, MA, ME, NH, VT. Variety flabellata is known from MA, ME, NH, VT.

Native to North America?

Yes

Sometimes confused with

Crataegus chrysocarpa:
leaf blades on flowering branchlets tapering to the base and anthers white to cream (vs. C. flabellata, with leaf blades on flowering branchlets broad-tapering to heart-shaped at the base and anthers pink to red). Crataegus macrosperma: inflorescence without hairs and fruit spherical to obviously taller than wide (vs. C. flabellata, with the inflorescence sparsely hairy and fruit spherical or nearly so).

Synonyms

  • Crataegus crudelis Sarg.
  • Crataegus lemingtonensis Sarg.
  • Crataegus propria Sarg.

Family

Rosaceae

Genus

Crataegus