Prunus serotina

black cherry
black chokecherry
Photo for species Prunus serotina
Did you know?: 

Prunus serotina is a valued hardwood having strong, hard, close-grained wood. It is used for cabinets and furniture, and also for furnishings, handles, toys, and scientific instruments. Additionally, it is used for rehabilitation and revegetation of surface mine sites. Livestock can be poisoned by this tree’s foliage when it is stressed and the leaves are wilted due to a concentration of cyangenic glycoside; livestock can also be poisoned by its twigs, bark, and seeds. Its fruits are an important food for birds and wildlife, which are not affected by the compound. The plant has been used medicinally, and its fruits to flavor rum and brandy, and to make jellies and wine.

Photo Credit: 
© James L. Reveal. Courtesy of Smithsonian Institution, Dept. of Systematic Biology, Botany.
What does this species look like?

Black cherry is a single-stemmed, deciduous tree growing 30 to 125 feet tall. Its tiny, fragrant, white flowers have both male and female parts and are clustered into showy, elongate spikes along the branches. Flowering begins when trees mature at about 10 years of age; its flowers are insect-pollinated.

Black cherry is commonly found in moderately moist woods on nearly all soil types, in forest openings, old fields, and fencerows. In warmer areas, it is confined to canyons, valleys, and rich bottomlands. It is not tolerant of shade, with many seedlings dying from lack of light or saplings repeatedly dying back and resprouting.

Why observe this species?

Black cherry is a USA-NPN regional plant species. Regional species are ecologically or economically important and are distributed more locally than calibration species. The NPN integrates these observations to better understand plant responses within the different geographic regions of the nation. In addition, this species is an allergen. Observations on its phenology will provide valuable information to benefit people with allergies and the public health community.

Where is this species found?
U.S. States: 
AL, AR, AZ, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV
Special Considerations for Observing

 If drought seems to be the cause of leaf color or fall for a plant, please make a comment to that effect.

Which phenophases should I observe?
Leaves

Do you see...?

Breaking leaf buds
One or more breaking leaf buds are visible on the plant. A leaf bud is considered "breaking" once a green leaf tip is visible at the end of the bud, but before the first leaf from the bud has unfolded to expose the leaf stalk (petiole) or leaf base.

How many buds are breaking?

Less than 3

3 to 10

More than 10

More...

Leaves
One or more live unfolded leaves are visible on the plant. A leaf is considered "unfolded" once the leaf stalk (petiole) or leaf base is visible. New small leaves may need to be bent backwards to see whether the leaf stalk or leaf base is visible. Do not include dried or dead leaves.

What proportion of the canopy is full with leaves?

Less than 5%

5-24%

25-49%

50-74%

75-94%

95% or more

More...

Increasing leaf size
A majority of leaves on the plant have not yet reached their full size and are still growing larger. Do not include new leaves that continue to emerge at the ends of elongating stems throughout the growing season.

What proportion of full size are most leaves?

Less than 25%

25-49%

50-74%

75-94%

95% or more

More...

Colored leaves
One or more leaves (including any that have recently fallen from the plant) have turned to their late-season colors.

What proportion of the canopy is still full with green leaves?

95% or more

75-94%

50-74%

25-49%

5-24%

Less than 5%

More...

Falling leaves
One or more leaves are falling or have recently fallen from the plant. More...

Flowers

Do you see...?

Flowers
One or more fresh flowers or flower heads (inflorescences) are visible on the plant. Flower heads include many small flowers that usually do not open all at once. Do not include wilted or dried flowers that remain on the plant, or heads whose flowers have all wilted or dried.

How many fresh flowers or flower heads are present?

Less than 3

3 to 10

More than 10

More...

Open flowers
One or more open fresh flowers are visible on the plant. Flowers are considered "open" when the reproductive parts (male stamens or female pistils) are visible between unfolded or open flower parts. Do not include wilted or dried flowers that remain on the plant.

How many fresh flowers are open?

Less than 3

3 to 10

More than 10

Peak flower: The plant has a large number of flowers and one half (50%) or more are open and still fresh.

More...

Fruits

Do you see...?

Fruits
One or more fresh fruits are visible on the plant.

How many fresh fruits are present?

Less than 3

3 to 10

More than 10

More...

Ripe fruits
One or more ripe fruits are visible on the plant.

How many fruits are ripe?

Less than 3

3 to 10

More than 10

More...

Recent fruit drop
One or more fresh mature fruits or seeds have dropped or been removed from the plant since your last visit. Do not include obviously immature fruits that have dropped before ripening, such as in a heavy rain or wind.

How many mature fruits have dropped?

Less than 3

3 to 10

More than 10

More...