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- Arctostaphylos uva-ursi
Arctostaphylos uva-ursi — kinnikinnick, red bearberry
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Facts
Red bearberry gets its common name from its species epithet (uva-ursi), which means bear-berry. This low-creeping, shrub of northern climes is also called kinnikinnick, an Algonquian word for "smoking mixture." The dry berries are slow to rot and thus provide excellent emergency food for birds and mammals throughout winter. Bearberry grows in dry, barren soils and as such can be used to stem soil erosion. The leaves produce arbutin, a compound that inhibits melanin production and lightens skin color.
Habitat
Anthropogenic (man-made or disturbed habitats), grassland, mountain summits and plateaus, ridges or ledges, sandplains and barrens
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.
Found this plant? Take a photo and post a sighting.
Characteristics
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Rhode Island
- Vermont
- Growth form
- the plant is a shrub (i.e., a woody plant with several stems growing from the base)
- Leaf type
- the leaf blade is simple (i.e., 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 no teeth or lobes
- Leaf duration
- the leaves remain green all winter
- armature on plant
- the plant does not have spines, prickles, or thorns
- Leaf blade length
- 10–25 mm
- Leaf blade width
- 5–15 mm
- Leaf stalk
- the leaves have leaf stalks
- Fruit type (general)
- the fruit is fleshy
- Bark texture
- the bark of an adult plant peels off easily or hangs off
- Twig winter color
-
- brown
- gray
- red
- Bud scale number
- there are two scales on the winter bud, and their edges meet
-
Buds or leaf scars
- Bud scale number
- there are two scales on the winter bud, and their edges meet
- 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 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
-
- pink
- 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 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
- 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 fused to form a tube, cup, or bell shape
- 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
- 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
- there are no flower parts that form 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 (i.e., a woody plant with several stems growing from the base)
-
Leaves
- Hairs on underside of leaf blade
- 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
- the underside of the leaf has no noticeable bloom
- 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
- NA
- Leaf blade length
- 10–25 mm
- Leaf blade scales
- there are no scales on the leaf blades
- Leaf blade shape
-
- the leaf blade is oblanceolate (lance-shaped, but with the widest point above the middle of the leaf blade)
- 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)
- 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
- 5–15 mm
- Leaf duration
- 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 is one leaf per node along the stem
- Specific leaf type
- the leaves are simple (i.e., lobed or unlobed but not separated into leaflets
- Stipules
- there are no stipules on the plant, or they fall off as the leaf expands
-
Place
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Rhode Island
- Vermont
- Specific habitat
-
- grasslands
- man-made or disturbed habitats
- mountain summits and plateaus
- ridges or ledges
- sandplains or barrens
-
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 peels off easily or hangs off
- 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 no lenticels on the twigs, or they are very hard to see
- 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 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
Occurs only in non-wetlands. (Wetland indicator code: UPL)
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.
- Maine
- SNR (code: SNR)
- Massachusetts
- widespread (S-rank: S5)
From Flora Novae Angliae dichotomous key
1. Arctostaphylos uva-ursi (L.) Spreng. N
red bearberry. Arctostaphylos adenotricha (Fern. & J.F. Macbr.) A. & D. Löve & Kapoor; A. uva-ursi (L.) Spreng. ssp. adenotricha (Fern. & J.F. Macbr.) Calder & Taylor; A. uva-ursi (L.) Spreng. var. adenotricha Fern. & J.F. Macbr.; A. uva-ursi (L.) Spreng. ssp. coactilis (Fern. & J.F. Macbr.) A. & D. Löve & Kapoor; A. uva-ursi (L.) Spreng. var. coactilis Fern. & J.F. Macbr.; Uva-ursi uva-ursi (L.) Britt. • CT, MA, ME, NH, RI, VT. Dry summits of hills and ridges, sand plains, dry, open, often sandy, clearings and rights-of-way. Some plants of Cape Cod and Nantucket Island, MA, are unusual in producing late-season flowers with red to purple corollas (in addition to the usual spring flowers with white to pink corollas).
Native to North America?
Yes
Sometimes confused with
- Arctous alpina:
- leaf blades serrate, marcescent, and rugose veiny, branchlets glabrous, and fruits purple to purple-black (vs. A. uva-ursi, with leaf blades entire, evergreen, and not rugose veiny, branchlets pubescent, and fruits red).
Synonyms
- Arctostaphylos adenotricha (Fern. & J.F. Macbr.) A. & D. Löve & Kapoor
- Arctostaphylos uva-ursi ssp. adenotricha (Fern. & J.F. Macbr.) Calder & Taylor
- Arctostaphylos uva-ursi ssp. coactilis (Fern. & J.F. Macbr.) A. & D. Löve & Kapoor
- Arctostaphylos uva-ursi var. adenotricha Fern. & J.. Macbr.
- Arctostaphylos uva-ursi var. coactilis Fern. & J.F. Macbr.
- Uva-Ursi uva-ursi (L.) Britt.