NYC Parks logo - a leaf inside a circle with the words NYC Parks below
New York City Street Tree Map
Explore and Care For NYC’s Urban Forest

Thornless Honey locust

Gleditsia triacanthos var. inermis

Thornless Honey locust leaf example

Honey locusts, Gleditsia triacanthos, can reach a height of 20–30 m (66–98 ft), with fast growth, and are relatively short-lived; their life spans are typically about 120 years, though some live up to 150 years. The leaves are pinnately compound on older trees but bipinnately compound on vigorous young trees. The leaflets are 1.5–2.5 cm (smaller on bipinnate leaves) and bright green. They turn yellow in the fall (autumn). The strongly scented cream-colored flowers appear in late spring, in clusters emerging from the base of the leaf axils. The fruit of the honey locust is a flat legume (pod) that matures in early autumn. Honey locusts commonly have thorns 3–10 cm long growing out of the branches, some reaching lengths over 20 cm; these may be single, or branched into several points, and commonly form dense clusters.


Species Statistics


Trees on Map


Activities Reported


Trees Favorited

Recent Tree Care Activities

Ecological Benefits

Stormwater intercepted each year

115,114,853 gallonsValue: $1,139,636.46

Stormwater intercepted each year

82,089,278 kWhValue: $10,363,351.25

Energy conserved each year

158,133 poundsValue: $826,824.84

Carbon dioxide reduced each year

83,027,996 tonsValue: $277,311.51

Total Value of Annual Benefits

Value: $12,607,124.06
Benefits are calculated using formulas from the U.S. Forest Service.
Map Key Tree marker color indicates species. Marker size indicates trunk diameter. Click on a tree on the map to see full tree details.