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Native Plant Trust: Go Botany Discover thousands of New England plants

Magnolia virginiana — sweet-bay

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Facts

Sweet-bay is a small tree (to 30 feet or 10 m tall) with light green leaves with whitish undersides. An evergreen plant further south, it hangs onto its leaves long into the fall in New England, and drops them green. It produces small numbers of showy white flowers with slightly cupped petals that give rise to aggregate fruits that split open to reveal seeds covered in red flesh (arils). Its gray bark is smooth. This species is more common in the southeast U. S., reaching the northern edge of its range in Connecticut and Massachusetts.

Habitat

Forests, swamps

New England distribution

Adapted from BONAP data

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North America distribution

Adapted from BONAP data

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Characteristics

Habitat
wetlands
New England state
  • Connecticut
  • Massachusetts
Growth form
  • the plant is a shrub (i.e., a woody plant with several stems growing from the base)
  • the plant is a tree
Leaf type
the leaf blade is simple (i.e., lobed or unlobed but not separated into leaflets)
Leaves per node
there are two leaves per node along the stem
Leaf blade edges
the edge of the leaf blade has no teeth or lobes
Leaf duration
  • the leaves drop off in winter (or they wither but persist on the plant)
  • the leaves remain green all winter
armature on plant
the plant does not have spines, prickles, or thorns
Leaf blade length
60–220 mm
Leaf blade width
26–70 mm
Leaf stalk
the leaves have leaf stalks
Fruit type (general)
the fruit is dry and splits open when ripe
Bark texture
the bark of an adult plant is thin and smooth
Twig winter color
green
Bud scale number
there is one scale on the winter bud, and it covers the scale like a cap
Show all characteristics

  • Buds or leaf scars

    Bud scale number
    there is one scale on the winter bud, and it covers the scale like a cap
    Bud scar shape (Fraxinus)
    NA
    Collateral buds
    there are no collateral buds on the sides of the branches
    Pseudoterminal bud
    there are no pseudoterminal buds on the tips of the branches
    Superposed buds
    there are no superposed buds on the branch
    Terminal bud
    the branch has a terminal bud on it
    Winter bud distribution
    the winter buds are distributed fairly evenly along the twig
    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 stalks
    the winter buds have no stalks

  • Flowers

    Anther color
    the anthers show no hint of a pink, reddish or purplish tint
    Carpels fused
    the carpel is solitary or (if 2 or more) the carpels are not fused to one another
    Enlarged sterile flowers
    there are no enlarged sterile flowers on the plant
    Flower petal color
    • other
    • 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 does not have a hypanthium
    Inflorescence type
    the inflorescence has only one flower on it
    Number of pistils
    6 or more
    Ovary position
    the ovary is above 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
    Stamen number
    13 or more
    Stamen position relative to petals
    NA
    Stamens fused
    the stamens are not fused to one another

  • 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
    Fruit type (specific)
    the fruit is an aggregate (composed of multiple fused ovaries from one flower)
    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 (i.e., 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 cuneate (wedge-shaped, tapers to the base with relatively straight, converging edges), or narrow
    Leaf blade base symmetry
    the leaf blade base is symmetrical
    Leaf blade bloom
    there is a noticeable powdery or waxy bloom on the underside of the leaf
    Leaf blade edges
    the edge of the leaf blade has no teeth or lobes
    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
    60–220 mm
    Leaf blade scales
    there are no 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 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 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
    26–70 mm
    Leaf duration
    • the leaves drop off in winter (or they wither but persist on the plant)
    • the leaves remain green all winter
    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 edge of the leaf blade is entire (has no teeth or lobes)
    Leaf teeth hairs (Carya)
    NA
    Leaf type
    the leaf blade is simple (i.e., lobed or unlobed but not separated into leaflets)
    Leaves per node
    there are two leaves per node along the stem
    Specific leaf type
    the leaves are simple (i.e., lobed or unlobed but not separated into leaflets
    Stipules
    the plant has stipules

  • Place

    Habitat
    wetlands
    New England state
    • Connecticut
    • Massachusetts
    Specific habitat
    • forests
    • swamps

  • 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 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
    Pith type
    the pith inside the twig is diaphragmed (the pith is solid but has walls between sections)
    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 winter color
    green
    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 wetlands, but occasionally in non-wetlands. (Wetland indicator code: FACW)

In New England

Distribution

Connecticut
present
Maine
absent
Massachusetts
present
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.

ssp. virginiana

Massachusetts
extremely rare (S-rank: S1), endangered (code: E)

Subspecies and varieties

Our subspecies is Magnolia virginiana L. ssp. virginiana.

From Flora Novae Angliae dichotomous key

3.  Magnolia virginiana L. ssp. virginiana N│EeC

sweet-bay. CT, MA; coastal plain. Wet-mesic to hydric forests. This species is introduced in 
CT and native (in part) to MA.

Native to North America?

Yes and no (some introduced)

Sometimes confused with

Magnolia acuminata:
leaf blades thick-herbaceous, abaxially pale green to white-green, seeds 9 mm or longer, and branchlets 4 mm thick or thicker(vs. M. virginiana, with leaf blades coriaceous, abaxially glaucous, seeds ca. 5 mm long, and branchlets 2–4 mm thick).

Family

Magnoliaceae

Genus

Magnolia