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Weed Identification

honeylocust

Family

Fabaceae

Scientific Name

Gleditsia triacanthos

Habit

The honey locust is very hardy as it adapts well to many types of soils. It thrives best, however, on moist soils.

Leaves

Leaves, alternate, consisting of 14 to 30 pinnately arranged leaflets.

Identifying Characteristics

It reaches heights of 30 meters and lives about 120 years. It is used in landscaping and is also used as avenue trees in cities. The thorns on this plant are dangerous when the tree is young. In the past, these hard thorns were used as nails.

Seed Fruit

Fruits are flat, twisted pods containing bean like seeds. Its long twisted fruit pod is 50 centimeters long. An alcoholic liquid is obtained by fermenting the seed coat. The fruit is source of food for birds and mammals.

Where Found

Even though it is rare in Canada, the honey locust covers an extensive range, from central to eastern United States.

Growth Habit

woody bush or tree

Thorns or Spines

present

Approximate Flower Diameter

pencil

Dominant Flower Color

Varies: 
yellow
green

Flower Symmetry

radial symmetery

Leaf Hairs

no hairs

Leaf Shape

Varies: 
lance
oval

Leaf Arrangement

alternate

Leaf Margin

entire

Leaf Structure

pinnate

Leaf Stalk

Varies: 
none
shorter than leaf

Stem Hairs

no hairs

Stem Cross Section

round or oval

Milky Sap

not present

Root Structure

Varies: 
fibrous
taproot

Life Cycle

perennial

Ochrea

not present

Plant Type

Tree