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Amelanchier arborea — common serviceberry, downy shadbush

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Facts

Downy shadbush gets its common name from the velvety, downy-hairy undersides of its leaves. The berries produced in early summer are eaten by over 40 species of birds and many mammals. The seeds benefit from being scarified during the digestion process.

Habitat

Anthropogenic (man-made or disturbed habitats), forests, meadows and fields, ridges or ledges, woodlands

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
  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • 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 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
40–100 mm
Leaf blade width
22–50 mm
Leaf stalk
the leaves have leaf stalks
Fruit type (general)
the fruit is fleshy
Bark texture
  • the bark of an adult plant is ridged or plated
  • the bark of an adult plant is thin and smooth
Twig winter color
  • brown
  • gray
  • 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
    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 distribution
    the winter buds are distributed fairly evenly along the twig
    Winter bud scale hairs
    the winter bud scales are hairy
    Winter bud scales
    the winter bud is perulate (partially or completely covered with one or more scales)
    Winter bud shape
    the winter buds are lanceoloid (lance-shaped, widest below the middle and tapering to the ends)
    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
    white
    Flower symmetry
    there are two or more ways to evenly divide the flower (the flower is radially symmetrical)
    Hairs on ovary (Amelanchier)
    the top of the ovary has no hairs
    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 raceme (a long unbranched stem with stalked flowers growing along it)
    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 appearance
    the sepals resemble leaves in color and texture
    Sepal cilia (Ilex)
    NA
    Sepal tip glands
    there are no glands at the tips of the sepal lobes
    Sepals fused only to sepals
    the sepals are separate from one another
    Stamen number
    • 10
    • 11
    • 12
    • 13 or more
    Stamen position relative to petals
    NA
    Stamens fused
    the stamens are not fused to one another

  • Fruits or seeds

    Berry color
    • purple
    • 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
    • the underside of the leaf has no hairs
    Hairs on upper side of leaf blade
    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
    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 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
    40–100 mm
    Leaf blade scales
    there are no scales on the leaf blades
    Leaf blade shape
    • the leaf blade is oblong (rectangular but with rounded 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 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 blade width
    22–50 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
    there are no nectaries on the leaf stalk
    Leaf stalk shape
    the leaf stalk is not flattened
    Leaf teeth
    • the leaf blade margin has teeth, which themselves have smaller teeth on them
    • the leaf blade margin is serrate (with forward-pointing) or dentate (with outward-pointing) with medium-sized to coarse 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
    • Connecticut
    • Maine
    • Massachusetts
    • New Hampshire
    • Rhode Island
    • Vermont
    Specific habitat
    • forests
    • man-made or disturbed habitats
    • meadows or fields
    • ridges or ledges
    • woodlands

  • 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 ridged or plated
    • 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
    Lenticels on twigs
    there are clearly lenticels on the twigs
    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
    • the twigs have hairs, but the hairs do not have glands
    Twig papillae (Vaccinium species only)
    NA
    Twig scales
    there are no scales on the twig surface
    Twig winter color
    • brown
    • gray
    • 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

Usually occurs in non-wetlands, but occasionally in wetlands. (Wetland indicator code: FACU)

In New England

Distribution

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

Conservation status

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

Massachusetts
unranked (S-rank: SNR)

var. arborea

Massachusetts
unranked (S-rank: SNR)

From Flora Novae Angliae dichotomous key

1.  Amelanchier arborea (Michx. f.) Fern. N

downy shadbush. Mespilus arborea Michx. f.; Pyrus wangenheimiana Tausch • CT, MA, ME, NH, RI, VT. Forests, woodlands, ridges, field edges, roadsides, most frequent in well drained soils.

1×2. Amelanchier arborea × Amelanchier bartramiana → This very rare shadbush hybrid is known from VT. It resembles Amelanchier ×‌neglecta in many features but has relatively more pubescence on the expanding leaf blades and relatively shorter pedicels.

1×7. Amelanchier arborea × Amelanchier laevis → This rare shadbush hybrid is known from MA, VT. It closely resembles Amelanchier arborea but is slightly earlier flowering (i.e., will have dropped most of its petals when other A. arborea in the local area are flowering) and shows relatively more-expanded leaves during anthesis (i.e., 50% or more developed and not tightly folded during anthesis). From A. laevis it is separated by the moderate pubescence on the flowering 
leaf blades and raceme.

Native to North America?

Yes

Sometimes confused with

Amelanchier canadensis:
petals 7-10 mm long and stalks of fruit 5-10 mm long (vs. A. arborea, with the petals mostly 12-15 mm long and stalks of fruit 10-25 mm long). Amelanchier laevis: leaf blades partially expanded and somewhat unfolded during flowering, sparsely hairy, strongly tinged with red-purple to purple (vs. A. arborea, with leaf blades small and folded during flowering, evidently hairy, green (except where concealed by hairs)).

Synonyms

  • Mespius arborea Michx. f.
  • Pyrus wangenheimiana Tausch

Family

Rosaceae

Genus

Amelanchier